Chandra X-Ray Observatory
	(CXC)

Chandra Large, Very Large and X-ray Visionary Projects

STARS & WD

Proposal NumberSubject CategoryPI NameTypeTime (ks)Title
02200644NORMAL STARS AND WDAyresLP565TORTURED CORONAE IN THE RAPID BRAKING ZONE
04200312NORMAL STARS AND WDCorcoranLP500UNVEILING ETA CAR: CHANDRA OBSERVATIONS DURING THE 2003.5 EVENT
04200331NORMAL STARS AND WDFeigelsonLP700AN ULTRADEEP CHANDRA STUDY OF THE ORION NEBULA (GUEST OBSERVER PORTION)
06200204STARS AND WDWaldronVLP1179A Chandra HETGS Survey of O-Stars
06200294STARS AND WDKastnerLP300The X-ray Spectrum of a Planetary Nebula at High Resolution
07200124STARS AND WDMicelaLP450The Initial Mass Function in the Outer Galaxy: The star forming region NGC 1893
07200367STARS AND WDTownsleyLP300Winds, OB Populations, and Young Stars: New Science from M17
08200704STARS AND WDBrickhouseLP500Accretion or a Corona? Definitive Observations of the Young Accreting Star TW Hydrae
10200509STARS AND WDZHEKOVLP300Testing the Colliding Wind Paradigm: X-rays from the Wolf-Rayet Binary System WR 147
11200169STARS AND WDOskinovaLP300Cosmic archaeology with Chandra: from a supergiant shell to young stellar objects in NGC 602
11200420STARS AND WDGuedelLP360New Thrust for Jets: Understanding the Physics of Young Stellar Jets and Outflows
11200698STARS AND WDDrakeVLP1080The Chandra Cygnus OB2 Survey
12200128STARS AND WDTownsleyLP460A Long Look at NGC 3603, the Milky Way's Starburst Cluster
12200492STARS AND WDKashyapLP360SPINNING CORONA OF FK COM
12200640STARS AND WDKastnerLP930X-rays from Planetary Nebulae: Unveiling Binarity, Magnetic Fields, and Wind Collisions
13200221STARS AND WDMicelaLP300Simultaneous Chandra - CoRoT - Spitzer Observation of the Star Forming Region NGC 2264
13200314STARS AND WDLeuteneggerLP300A systematic measurement of the mass-loss rate of Zeta Ori
13200852STARS AND WDAguerosLP450Deep Imaging of M37, A Better Hyades
14200176STARS AND WDHuenemoerderLP450Wolf-Rayet Winds at High Spectral Resolution
14200631STARS AND WDCorcoranLP500Occultation Measurements of the Embedded Wind Shock Distribution in the Nearest Eclipsing O-star Binary
14200801STARS AND WDKastnerLP670COMPACT AND DIFFUSE X-RAY SOURCES IN THE YOUNGEST PLANETARY NEBULAE

Subject Category: NORMAL STARS AND WD

Proposal Number: 02200644

Title: TORTURED CORONAE IN THE RAPID BRAKING ZONE

Type: LP Total Time: 565

PI Name: Thomas Ayres

Deep HETGS exposures of four key G0-G5 giants will address fundamental questions concerning their hot magnetized coronae by determining temperatures and densities, probing chemical fractionation processes, and exploring plasma dynamics. The giants lie in or near the "Rapid Braking Zone" where moderate mass stars undergo a radical transformation of their outer atmospheres, perhaps as a relic magnetosphere is disrupted by the onset of a solar-like dynamo. ACIS-I CCD spectra of five G/K supergiants will explore the even more extreme extension of the RBZ to higher masses: where hot coronae mix freely with cool stellar winds. These are ideal targets to exploit the experience gained in the Emission Line Project studies of the active binaries Capella and HR 1099.

R.A. Dec. Target Name Det. Grating Exp.Time
23:49:40.80+36:25:31.00HD 223460ACIS-SHETG100
10:46:46.10-49:25:12.00HD 93497ACIS-SHETG80
12:51:41.80+27:32:26.00HD 111812ACIS-SHETG140

Subject Category: NORMAL STARS AND WD

Proposal Number: 04200312

Title: UNVEILING ETA CAR: CHANDRA OBSERVATIONS DURING THE 2003.5 EVENT

Type: LP Total Time: 500

PI Name: Michael Corcoran

Understanding the supermassive star Eta Car is important for a variety of topics: the formation and evolution of extremely massive stars and their influence on their environments. Eta Car has been a mystery since its giant eruption in the 1840s. A possible key to the puzzle is the identification of periodic changes in some near IR emission lines, and the discovery of repeatable X-ray eclipses. The next X-ray eclipse will occur during AO4, and we propose to use HETG to observe the variations in the spectral and spatial distribution of the emission during this event. In conjunction with scheduled HST/STIS, INTEGRAL, IR and optical spectroscopy, and radio observations, these HETG observation provide key information which may finally help us solve the riddle of this star.

R.A. Dec. Target Name Det. Grating Exp.Time
10:45:03.60-59:41:04.30ETA CARINAEACIS-SHETG100
10:45:03.60-59:41:04.30ETA CARINAEACIS-SHETG100
10:45:03.60-59:41:04.30ETA CARINAEACIS-SHETG100
10:45:03.60-59:41:04.30ETA CARINAEACIS-SHETG100
10:45:03.60-59:41:04.30ETA CARINAEACIS-SHETG100

Subject Category: NORMAL STARS AND WD

Proposal Number: 04200331

Title: AN ULTRADEEP CHANDRA STUDY OF THE ORION NEBULA (GUEST OBSERVER PORTION)

Type: LP Total Time: 700

PI Name: Eric Feigelson

We propose a 850 ks ACIS-I observation of the Orion Nebula spanning 11.5 contiguous days, with GTO Teams providing 150 ks of the time. The Orion Nebula is the best target in the sky for Chandra study of stellar magnetic activity and star formation with extensive multiwavelength support. Science goals include: addressing the mass- and age-dependence of magnetic activity in brown dwarfs; uncovering the low-mass members of the deeply embedded clusters; elucidating the absence of an activity-rotation relation in pre-main sequence stars; measuring flare frequencies, flare plasma conditions and coronal structures in dozens of active stars; investigate the nature of OB wind shocks; and studying X-ray effects on circumstellar environments.

R.A. Dec. Target Name Det. Grating Exp.Time
05:35:16.70-05:23:24.00ORION NEBULA CLUSTERACIS-INONE700

Subject Category: STARS AND WD

Proposal Number: 06200204

Title: A Chandra HETGS Survey of O-Stars

Type: VLP Total Time: 1179

PI Name: Wayne Waldron

We are requesting HETGS observations of 6 normal O-stars to further explore the characteristics and the origin of the remarkably detailed X-ray line spectra that has been revealed by Chandra. These new targets have been carefully selected on the basis of their normal optical and UV spectra, instead of their X-ray brightness or peculiarity. Along with archival HETGS spectra, this collection will provide complete coverage of the O-star domain in the H-R diagram. The spectra from this unbiased sample will be assembled in a comprehensive X-ray atlas, which will be used to search for morphological trends in the emission lines as a function of stellar parameters. These trends will guide the development of quantitative models to explain the behavior of the X-ray emission lines of O-type stars.

R.A. Dec. Target Name Det. Grating Exp.Time
10:43:57.50-59:32:51.00HD93129ABACIS-SHETG145
18:03:52.40-24:21:38.609 SgrACIS-SHETG147
10:44:45.00-59:33:54.70HD93250ACIS-SHETG194
06:40:58.70+09:53:44.7015 MonACIS-SHETG108

Subject Category: STARS AND WD

Proposal Number: 06200294

Title: The X-ray Spectrum of a Planetary Nebula at High Resolution

Type: LP Total Time: 300

PI Name: Joel Kastner

Planetary nebulae (PNs) provide unique insights into a wide range of astrophysical phenomena. X-ray imaging of PNs by CXO has now broken open the study of very high temperature gas in these objects. To make further progress, we require detailed information concerning gas temperature and composition as a function of position within X-ray emitting PN "hot bubbles." Such information can be obtained only from observations combining high spectral and spatial resolution. We propose a 300 ks LETG/ACIS-S exposure of BD+303639, a particularly X-ray-bright PN. Such a deep, high spectral resolution observation of a PN has yet to be attempted. The proposed observation thus represents a potential breakthrough in our understanding of the origin and evolution of PNs.

R.A. Dec. Target Name Det. Grating Exp.Time
19:34:45.20+30:30:58.90BD +303639ACIS-SLETG300

Subject Category: STARS AND WD

Proposal Number: 07200124

Title: The Initial Mass Function in the Outer Galaxy: The star forming region NGC 1893

Type: LP Total Time: 450

PI Name: Giuseppina Micela

We will explore the effects of environmental conditions, which change dramatically between the inner and outer regions of the Galaxy, on the initial mass function (IMF) of the star forming region NGC 1893. Our proposed 450 ksec observation of NGC 1893, a SFR of ~3 Myr in the outer part of the Galaxy, joint with two hours of Spitzer data, will permit us to identify members down to 0.5 Msun and enable a comparison of NGC 1893's IMF with those derived for SFRs in the solar neighborhood. Our observations will help in determining, particularly in the low mass regime, how the IMF depends on galactic environment. With its spatial resolution and sensitivity, Chandra, with the support of Spitzer, is uniquely suited to achieve our objectives.

R.A. Dec. Target Name Det. Grating Exp.Time
05:22:50.00+33:28:05.00NGC 1893ACIS-INONE450

Subject Category: STARS AND WD

Proposal Number: 07200367

Title: Winds, OB Populations, and Young Stars: New Science from M17

Type: LP Total Time: 300

PI Name: Leisa Townsley

We propose to use two ACIS-I pointings centered on the young, massive OB cluster in M17 (the Omega Nebula) and on its powerful X-ray outflow as a testbed for understanding recent and ongoing star formation in the M17 complex and its environmental impact. This rich field is perfect for studying X-ray emission from high-mass as well as intermediate/low-mass stars and for comparing the X-ray luminosity function in a high-mass complex to that in the closer, less powerful Orion Nebula Cluster, recently established by a long Chandra exposure. M17 is ideal for exploring the properties of diffuse X-ray emission to elucidate wind/wind and wind/cloud shock physics in HII regions and for studying embedded stellar clusters and massive protostars forming as M17 interacts with its molecular cloud.

R.A. Dec. Target Name Det. Grating Exp.Time
18:20:29.90-16:10:44.90M17 Pointing IACIS-INONE200
18:21:33.50-16:11:55.90M17 Pointing IIACIS-INONE100

Subject Category: STARS AND WD

Proposal Number: 08200704

Title: Accretion or a Corona? Definitive Observations of the Young Accreting Star TW Hydrae

Type: LP Total Time: 500

PI Name: Nancy Brickhouse

We propose a 500 ks observation of the prototypical accreting young star TW Hydrae to determine whether the X-ray emission is from a hot corona or an accretion shock. In the short archival spectrum, O VII and Ne IX forbidden to intercombination lines signal either extremely high densities that must be associated with a shock, or photoexcitation by UV continuum emission. The definitive measurement for the density is the analogous Mg XI line ratio. We will also measure velocity shifts and line broadening, search for rotational modulation, and determine elemental abundances using standard emission measure distribution techniques. This deep spectrum will probe the density and structure of the magnetic regions associated with the accretion process during star formation.

R.A. Dec. Target Name Det. Grating Exp.Time
11:01:52.00-34:42:16.90TW HyaACIS-SHETG500

Subject Category: STARS AND WD

Proposal Number: 10200509

Title: Testing the Colliding Wind Paradigm: X-rays from the Wolf-Rayet Binary System WR 147

Type: LP Total Time: 300

PI Name: Svetozar ZHEKOV

We propose a deep HETG exposure of the Wolf-Rayet binary system WR 147. The excellent gratings and zero-order data will be used to put tight constraints on the validity of the colliding stellar wind (CSW) mechanism assumed responsible for the X-rays from this object. The detection of broad emission lines with profiles and centroids in agreement with synthetic colliding wind spectra, along with confirmation of the spatially extended X-ray emission reported from the previous short HRC-I exposure, would support the colliding wind picture. On the other hand, narrow (or unresolved) unshifted emission lines would require an interpretation other than CSW. Thus, this study will be the most rigorous test of the CSW paradigm in a WN+OB binary so far.

R.A. Dec. Target Name Det. Grating Exp.Time
20:36:43.70+40:21:07.30WR 147ACIS-SHETG300

Subject Category: STARS AND WD

Proposal Number: 11200169

Title: Cosmic archaeology with Chandra: from a supergiant shell to young stellar objects in NGC 602

Type: LP Total Time: 300

PI Name: Lidia Oskinova

The Wing of the SMC has low metalicity, and low content of gas and dust. It provides an ideal nearby laboratory to study star formation and feedback in an environment that resembles the early Universe. We propose a 300 ks Chandra observation of NGC602, a massive star cluster at the edge of a supergiant shell in the Wing. This cluster has a simple morphology and is located in a region of high transparency for X-rays. The Chandra data will help to answer the fundamental questions about the mechanisms that sculpture the largest structures in the ISM, and trigger the formation of stars. This observation will be complemented with data from other NASA Great Observatories HST and Spitzer, and will establish a template for studies of active star formation in external galaxies.

R.A. Dec. Target Name Det. Grating Exp.Time
01:29:38.60-73:34:25.10NGC 602ACIS-INONE300

Subject Category: STARS AND WD

Proposal Number: 11200420

Title: New Thrust for Jets: Understanding the Physics of Young Stellar Jets and Outflows

Type: LP Total Time: 360

PI Name: Manuel Guedel

We propose a deep ACIS observation of the jet system of the classical T Tauri star DG Tau. DG Tau is so far unique because both its jet and counter-jet have been detected in X-rays. We will study jet structure, temperatures and proper motions of the sources and model the heating, propagation, and cooling physics of the hot plasma jets. The system orientation allows the counter-jet to be viewed through the circumstellar disk. X-ray absorption by the disk gas can thus be reliably determined and be used, together with optical information, to determine the gas-to-dust ratio in the disk. We will request radio (VLA) observations for complementary imaging, and near-IR (VLT) observing time for high-resolution spectroscopy to characterize the jet shocks and measure extinction along the jets.

R.A. Dec. Target Name Det. Grating Exp.Time
04:27:04.70+26:06:16.20DG TauACIS-SNONE360

Subject Category: STARS AND WD

Proposal Number: 11200698

Title: The Chandra Cygnus OB2 Survey

Type: VLP Total Time: 1080

PI Name: Jeremy Drake

Understanding massive "starburst" clusters is crucial for the first stars, starburst galaxies, galactic and ISM evolution, and star and planet formation on universal and galactic scales. But Galactic superclusters are generally too distant for detailed study. Recent awareness that Cygnus OB2 (1.5kpc; ~2Myr old) has supercluster characteristics has sparked a multiwavelength legacy effort exploiting its proximity to study starburst astrophysics. This Chandra Legacy project will provide an exquisite vision of the anatomy of a massive "collapse" mode of star formation, allowing detailed archeology of its history and content. 8000-10000 detections down to 0.1Msun will incisively test theories of giant molecular cloud collapse, massive star formation and protoplanetary disk evolution.

R.A. Dec. Target Name Det. Grating Exp.Time
20:33:12.00+41:19:00.00Cygnus OB2ACIS-INONE1080

Subject Category: STARS AND WD

Proposal Number: 12200128

Title: A Long Look at NGC 3603, the Milky Way's Starburst Cluster

Type: LP Total Time: 460

PI Name: Leisa Townsley

NGC 3603 is one of the youngest truly massive stellar clusters in the Galaxy and serves as a springboard for understanding super star clusters such as R136 in 30 Doradus. Recent advances in infrared imaging and UV/visual spectroscopy applied to NGC 3603 are yielding new catalogs of pre-Main Sequence stars and new spectral types for massive stars; advances in ACIS analysis techniques now give robust X-ray source properties in crowded fields that facilitate comparison with these new datasets. We will apply these new methods to a deep ACIS-I observation of NGC 3603 to study its massive stars (3 W-R + >100 O stars, including over half of the Galaxy's O3 stars), thousands of pre-main sequence stars, and diffuse X-ray emission that pervades the cluster, perhaps indicating cavity supernovae.

R.A. Dec. Target Name Det. Grating Exp.Time
11:15:07.20-61:15:35.20NGC 3603ACIS-INONE460

Subject Category: STARS AND WD

Proposal Number: 12200492

Title: SPINNING CORONA OF FK COM

Type: LP Total Time: 360

PI Name: Vinay Kashyap

FK Com (GIII) is an ultra-fast rotator - a coalesced binary that has spun up - and provides unique insights into activity at the extremes of dynamo action. Two consecutive Chandra orbits of ACIS-S/HETG and 20 orbits of HST/COS observations will be combined with contemporaneous Doppler imaging maps and spectropolarimetric field measurements to build 3D coronal models. We will: locate dominant coronal and TR structures using Doppler shifts; measure emission scale heights via rotational broadening; derive densities, abundances, and EM in both quiescent and flaring plasma; constrain the dynamic processes by line profile modeling; and measure microflaring effects. Results of this LP will provide a detailed legacy view of the workings of coronae at their extreme edge.

R.A. Dec. Target Name Det. Grating Exp.Time
13:30:46.80+24:13:57.70FK ComACIS-SHETG240

Subject Category: STARS AND WD

Proposal Number: 12200640

Title: X-rays from Planetary Nebulae: Unveiling Binarity, Magnetic Fields, and Wind Collisions

Type: LP Total Time: 930

PI Name: Joel Kastner

Chandra has yielded unparalleled insight into the processes involved in shaping planetary nebulae (PNe), via the detection of diffuse and/or point-like X-ray sources within PNe. Diffuse X-ray sources, whether due to ``hot bubbles'' or to collimated outflows or jets, allow us to probe the energetic shocks within PN wind interaction regions. Meanwhile, X-ray point sources in PNe provide unique diagnostics of circumstellar magnetic fields, accretion disks, wind shocks, and/or binary companions at PN cores. These results from Chandra's first decade have prompted the community of PN astronomers to propose the first systematic X-ray survey of PNe in the solar neighborhood.

R.A. Dec. Target Name Det. Grating Exp.Time
04:09:17.00+30:46:33.50NGC 1514ACIS-SNONE20
03:33:14.60-25:52:18.00NGC 1360ACIS-SNONE20
19:59:36.30+22:43:16.10NGC 6853ACIS-SNONE20
18:53:35.10+33:01:45.00NGC 6720ACIS-SNONE20
21:00:32.50+54:32:36.20NGC 7008ACIS-SNONE20
11:14:47.70+55:01:08.50NGC 3587ACIS-SNONE20
17:35:41.90-40:11:26.50PN Lo 16ACIS-SNONE30
19:18:28.10+06:32:19.30NGC 6781ACIS-SNONE30
09:39:09.10-02:48:32.00A66 33ACIS-SNONE30
17:13:44.20-37:06:15.90NGC 6302ACIS-SNONE30
01:42:19.90+51:34:31.10M 76ACIS-SNONE30
19:14:36.40-02:42:25.00NGC 6772ACIS-SNONE30
23:25:53.60+42:32:06.00NGC 7662ACIS-SNONE30
21:36:53.00+12:47:19.00NGC 7094ACIS-SNONE30
17:49:15.20-20:00:34.50NGC 6445ACIS-SNONE30
07:25:34.70+29:29:26.40NGC 2371ACIS-SNONE30
07:41:50.50-14:44:07.70NGC 2438ACIS-SNONE30
19:31:35.10+09:13:31.40NGC 6804ACIS-SNONE30
07:09:22.50-00:48:23.60NGC 2346ACIS-SNONE30
10:24:46.10-18:38:32.60NGC 3242ACIS-SNONE30
21:04:10.90-11:21:48.30NGC 7009ACIS-SNONE30

Subject Category: STARS AND WD

Proposal Number: 13200221

Title: Simultaneous Chandra - CoRoT - Spitzer Observation of the Star Forming Region NGC 2264

Type: LP Total Time: 300

PI Name: Giuseppina Micela

We propose a 300 ks observation of the star forming region NGC2264, to be performed in December 2011, during a 30 day Spitzer and CoRoT joint observation of the region. The program, also involving a series of ground observations, will be a unique experiment: using three space telescopes we will, for the first time, monitor hundreds of young stellar objects simultaneously over a broad wavelength range. We will thus obtain crucial insights on the physics of flares, the morphology of coronal emitting structures, and the physical processes responsible for the extreme variability of Classical T Tauri Stars at all wavelengths.

R.A. Dec. Target Name Det. Grating Exp.Time
06:40:58.70+09:34:14.00NGC 2264ACIS-INONE300

Subject Category: STARS AND WD

Proposal Number: 13200314

Title: A systematic measurement of the mass-loss rate of Zeta Ori

Type: LP Total Time: 300

PI Name: Maurice Leutenegger

We propose a 300 ks HETGS observation of the O supergiant Zeta Orionis. In combination with 74 ks archival data, we will make very high signal-to-noise measurements of emission line profile shapes, which sensitively measure the wind optical depth as a function of wavelength. We will use the wavelength dependence of wind optical depth from all usable lines to make a precise measurement of the mass-loss rate. The wavelength dependence of wind optical depth will also test the importance of porosity. We will use XCMFGEN, our powerful new radiative transfer code, to construct global models which will be fit to X-ray, UV, and optical data, providing the strongest possible constraints on stellar and wind properties.

R.A. Dec. Target Name Det. Grating Exp.Time
05:40:45.50-01:56:33.20Zeta OrionisACIS-SHETG300

Subject Category: STARS AND WD

Proposal Number: 13200852

Title: Deep Imaging of M37, A Better Hyades

Type: LP Total Time: 450

PI Name: Marcel Agueros

Recent studies suggest that the picture of stellar LX decaying from 10 Myr to 5 Gyr as a single power-law is overly simplistic. M37, a Hyades analog, has been carefully surveyed in the optical, and we propose complementary deep (450 ksec) ACIS-I imaging of this open cluster. M37's rich membership, good match to Chandra's FOV, and large number of measured periods (~700) make it ideal for examining the evolution of coronal X-ray emission. Together, our X-ray and optical data will provide independent determinations of LX and v_rot; map out M37's X-ray luminosity function, with stacking of optically similar sources extending our flux limits by ~10x; test whether magnetic effects produce anomalous optical colors/luminosities for high LX sources; and characterize M37's interacting binaries.

R.A. Dec. Target Name Det. Grating Exp.Time
05:52:18.80+32:33:34.10M37ACIS-INONE450

Subject Category: STARS AND WD

Proposal Number: 14200176

Title: Wolf-Rayet Winds at High Spectral Resolution

Type: LP Total Time: 450

PI Name: David Huenemoerder

The physical origin of X-ray emission in single Wolf-Rayet (WR) stars is not known. We request 450 ks on WR 6 with HETGS to establish which mechanisms operate in the winds of massive stars at the end of their evolution, shortly before a supernova or gamma-ray burst explosion. High-spectral resolution above 1 kev with HETGS is required to resolve emission lines from the hottest X-ray emitting plasma and thereby determine the location of wind structures. Principal diagnostics of X-ray emission line profiles in conjunction with our state-of-the-art stellar atmospheres code will help unravel current uncertainties in wind generation.

R.A. Dec. Target Name Det. Grating Exp.Time
06:54:13.00-23:55:42.00WR 6ACIS-SHETG450

Subject Category: STARS AND WD

Proposal Number: 14200631

Title: Occultation Measurements of the Embedded Wind Shock Distribution in the Nearest Eclipsing O-star Binary

Type: LP Total Time: 500

PI Name: Michael Corcoran

We propose four phase-constrained Chandra/HETGS observations of the massive, eclipsing, single-line spectroscopic binary $\delta$~Ori. Delta Ori is one of the fundamental calibrators of the mass-luminosity-radius relation in the upper HR diagram.These HETGS observations will, for the first time, provide an in-situ measurement of the distribution of the embedded, X-ray emitting shocks in the wind of an O star via radial velocity, occultation and $f/i$ ratio diagnostics, as well as determine the primary star's clumping-corrected mass loss rate. These observations will help resolve critical uncertainties in our understanding of the connection between stellar and mass loss parameters and pioneer new X-ray analysis methods in massive star astrophysics.

R.A. Dec. Target Name Det. Grating Exp.Time
05:32:00.40-00:17:56.70Delta OriACIS-SHETG125
05:32:00.40-00:17:56.70Delta OriACIS-SHETG125
05:32:00.40-00:17:56.70Delta OriACIS-SHETG125
05:32:00.40-00:17:56.70Delta OriACIS-SHETG125

Subject Category: STARS AND WD

Proposal Number: 14200801

Title: COMPACT AND DIFFUSE X-RAY SOURCES IN THE YOUNGEST PLANETARY NEBULAE

Type: LP Total Time: 670

PI Name: Joel Kastner

The community of planetary nebula (PN) astronomers is undertaking ChanPLaNS, the first systematic X-ray survey of PNe in the solar neighborhood. ChanPlaNS is yielding such fundamental, new results as the frequency of appearance and range of X-ray spectral characteristics of X-ray-emitting PN central stars and the evolutionary timescales of wind-shock-heated bubbles within PNe. Here, we propose the next phase of the survey, in which we will observe all (24) remaining known compact (radius <= 0.4 pc), young PNe within ~1.5 kpc that have yet to be observed by Chandra. This LP represents the next step toward understanding the relationship between PN X-ray emission and PN shaping processes, and its results will have broad and profound impact on the study of binary stars and wind interactions.

R.A. Dec. Target Name Det. Grating Exp.Time
09:52:44.50-46:16:51.00PN G273.6+06.1ACIS-SNONE20
21:59:35.20-39:23:08.00IC 5148ACIS-SNONE20
17:22:15.70-38:29:03.50NGC 6337ACIS-SNONE20
19:31:07.20-03:42:31.50PN G034.1-10.5ACIS-SNONE20
15:51:40.90-51:31:28.60PN G329.0+01.9ACIS-SNONE30
08:37:08.00-39:25:05.40ESO 313-5ACIS-SNONE30
19:01:59.30+02:09:18.00LBN 036.00-01.26ACIS-SNONE30
19:46:34.20-23:08:12.90ESO 526-3ACIS-SNONE30
17:45:57.70-30:12:00.60ESO 455-33ACIS-SNONE30
18:54:37.20-08:49:39.10IC 1295ACIS-SNONE30
20:16:24.00+30:33:53.20NGC 6894ACIS-SNONE30
16:01:21.10-34:32:35.80NGC 6026ACIS-SNONE30
09:27:03.00-56:06:21.10NGC 2899ACIS-SNONE30
16:12:58.10-36:13:46.10NGC 6072ACIS-SNONE30
21:26:23.50+62:53:31.80NGC 7076ACIS-SNONE30
05:56:23.90+46:06:17.50IC 2149ACIS-SNONE30
17:29:20.40-23:45:34.80NGC 6369ACIS-SNONE30
22:40:19.80+61:17:08.70NGC 7354ACIS-SNONE30
17:47:56.20-29:59:41.90ESO 455-42ACIS-SNONE30
04:06:59.40+60:55:14.40NGC 1501ACIS-SNONE20
16:31:30.60-40:15:12.30NGC 6153ACIS-SNONE30
17:05:10.50-40:53:08.40IC 4637ACIS-SNONE30
18:09:29.90-24:12:23.50ESO 521-39ACIS-SNONE30
11:50:17.70-57:10:56.90NGC 3918ACIS-SNONE30
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