Cycle 28 Approved Peer-Reviewed Targets

10.15 Monday, April 20, 2026
The Chandra X-Ray Center (CXC) is the Smithsonian Astrophysical Observatory. Street, Cambridge, MA 02138 USA. href="mailto:cxchelp@cfa.harvard.edu">cxchelp@ Smithsonian Institution, Copyright © Alt. Tgt Proposal P.I Institution ----------------------------------------------------------------------- ACIS-S NONE 10.00 28400135 Homan UniC ACIS-S NONE 10.00 28400135 Homan UniC ACIS-S HETG 88.00 28400143 Plotkin University of Nevada Reno (UNR) ACIS-S NONE 0.00 28400143 Plotkin University of Nevada Reno (UNR) ACIS-S NONE 125.00 28400174 Cackett Wayne State University ACIS-I NONE 40.00 28400175 Abbasi Sabanci University ACIS-S NONE 12.00 28400202 Russell New York University Abu Dhabi (NYUAD) ACIS-S NONE 80.00 28400227 O'Connor Carnegie Mellon ACIS-S HETG 120.00 28400300 Neilsen Villanova University ACIS-S NONE 25.00 28400344 Fong Northwestern University ACIS-S NONE 40.00 28400344 Fong Northwestern University ACIS-S NONE 50.00 28400344 Fong Northwestern University ACIS-S NONE 85.00 28500184 Laskar University of Utah ACIS-S NONE 45.00 28500232 MARGUTTI University of California, Berkeley (UC Berkeley) ACIS-S NONE 50.00 28500234 Tsuna Harvard University ACIS-S NONE 50.00 28500234 Tsuna Harvard University ACIS-S NONE 50.00 28500234 Tsuna Harvard University ACIS-S NONE 50.00 28500234 Tsuna Harvard University ACIS-S NONE 50.00 28500234 Tsuna Harvard University ACIS-S NONE 75.00 28500264 Troja Universita degli Studi di Roma Tor Vergata ACIS-S NONE 20.00 28500287 Kaplan University of Wisconsin-Milwaukee ACIS-S NONE 20.00 28500287 Kaplan University of Wisconsin-Milwaukee ACIS-S NONE 40.00 28500332 Jacobson-Galan California Institute of Technology (Caltech) ACIS-S NONE 200.00 28510223 Xray Northwestern University ACIS-S NONE 270.00 28510223 Xray Northwestern University ACIS-S NONE 75.00 28700246 Somalwar University of California, Berkeley (UC Berkeley) ACIS-S NONE 50.00 28700262 Yao UC Berkeley ACIS-S NONE 50.00 28700262 Yao UC Berkeley ACIS-S NONE 75.00 28910161 Heinz University of Wisconsin-Madison ACIS-S HETG 30.00 28300141 Orio University of Wisconsin-Madison HRC-S LETG 30.00 28300141 Orio University of Wisconsin-Madison HRC-S LETG 45.00 28300141 Orio University of Wisconsin-Madison ACIS-S NONE 150.00 28400200 Corbel CEA-Saclay ACIS-S NONE 180.00 28500193 MARGUTTI University of California, Berkeley (UC Berkeley) ACIS-S NONE 25.00 28700310 Cox Clemson University ACIS-I NONE 90.00 28500165 Holland-Ashford NASA/GSFC/ORAU ACIS-S NONE 63.00 28700296 Bayliss University of Cincinnati ACIS-S NONE 15.00 28500136 Kurpas Leibniz-Institut fuer Astrophysik Potsdam (AIP) ACIS-S NONE 185.00 28800089 Sun University of Alabama, Huntsville (UAH) ACIS-S NONE 450.00 Alt 28500176 Ng McGill University ACIS-S NONE 450.00 Alt 28500176 Ng McGill University ACIS-S NONE 211.00 28800159 Flores Rutgers University ACIS-S NONE 450.00 Alt 28500176 Ng McGill University HRC-S LETG 80.00 28200192 Wilson University of Colorado (CU) ACIS-S NONE 2.00 28700129 Pooley Eureka Scientific ACIS-S NONE 66.00 28200109 Couperus Smith College ACIS-S NONE 27.00 28700057 Arcodia Harvard University ACIS-I NONE 145.00 28800168 Rajpurohit Smithsonian Astrophysical Observatory (SAO) ACIS-S NONE 1000.00 28700052 Maksym NASA/MSFC ACIS-S NONE 10.00 28700310 Cox Clemson University ACIS-S NONE 10.00 28700267 Stern Caltech - JPL ACIS-S NONE 10.00 28700310 Cox Clemson University ACIS-S NONE 20.00 28500136 Kurpas Leibniz-Institut fuer Astrophysik Potsdam (AIP) ACIS-S NONE 10.00 28500304 A.J. University of California - Berkeley ACIS-S NONE 17.00 28800073 Mantz Stanford University ACIS-S NONE 10.00 28700310 Cox Clemson University ACIS-S NONE 16.40 28700267 Stern Caltech - JPL ACIS-I NONE 155.00 28800139 Rajpurohit Smithsonian Astrophysical Observatory (SAO) ACIS-S NONE 10.00 28700310 Cox Clemson University ACIS-S NONE 30.00 28700310 Cox Clemson University ACIS-S NONE 7.90 28700267 Stern Caltech - JPL ACIS-S NONE 10.00 28700267 Stern Caltech - JPL ACIS-S NONE 4.80 28700267 Stern Caltech - JPL ACIS-I NONE 260.00 28800013 Babyk Eureka Scientific ACIS-S NONE 10.60 28700267 Stern Caltech - JPL ACIS-S NONE 150.00 28700102 Isla Universita di Bologna ACIS-S NONE 90.00 28200127 Guenther MIT Kavli Institute ACIS-S NONE 14.20 28700267 Stern Caltech - JPL ACIS-S NONE 9.50 28700267 Stern Caltech - JPL ACIS-S NONE 450.00 Alt 28500176 Ng McGill University ACIS-S NONE 40.00 28700325 Karavangelas California Institute of Technology (Caltech) ACIS-S NONE 2.00 28700129 Pooley Eureka Scientific ACIS-I NONE 12.00 28200187 Getman Pennsylvania State University (Penn State) ACIS-I NONE 12.00 28200187 Getman Pennsylvania State University (Penn State) ACIS-I NONE 11.00 28200187 Getman Pennsylvania State University (Penn State) ACIS-I NONE 12.00 28200187 Getman Pennsylvania State University (Penn State) ACIS-I NONE 12.00 28200187 Getman Pennsylvania State University (Penn State) ACIS-I NONE 11.00 28200187 Getman Pennsylvania State University (Penn State) ACIS-S HETG 99.00 28500019 Park University of Texas at Arlington (UTA) HRC-S LETG 59.00 28500019 Park University of Texas at Arlington (UTA) ACIS-S NONE 50.00 28700307 Koss Eureka Scientific ACIS-S NONE 55.00 28200109 Couperus Smith College ACIS-S NONE 25.00 28700310 Cox Clemson University ACIS-S NONE 160.00 28700188 Sisk Reynes Smithsonian Astrophysical Observatory (SAO) HRC-I NONE 12.00 28400306 Sheng Clemson University ACIS-S NONE 2.00 28700129 Pooley Eureka Scientific ACIS-S NONE 2.00 28700129 Pooley Eureka Scientific ACIS-S NONE 20.00 28800073 Mantz Stanford University ACIS-I NONE 15.00 28500239 Romani Stanford University ACIS-S NONE 20.00 28500304 A.J. University of California - Berkeley ACIS-S NONE 450.00 Alt 28500176 Ng McGill University HRC-I NONE 15.00 28200140 AYRES University of Colorado (CU) ACIS-S NONE 2.00 28700129 Pooley Eureka Scientific ACIS-S NONE 50.00 28700347 Koss Eureka Scientific ACIS-S NONE 50.00 28700347 Koss Eureka Scientific ACIS-S NONE 100.00 28700106 Vito INAF/OAS - Bologna ACIS-S NONE 30.00 28500093 Ho Haverford College ACIS-S NONE 36.00 28200109 Couperus Smith College ACIS-S NONE 25.00 28700147 Barrows University of Colorado (CU) ACIS-S NONE 69.00 28620107 Su University of Kentucky (UK) ACIS-S NONE 400.00 28700131 Pooley Eureka Scientific ACIS-S NONE 80.00 28620210 Alatalo Johns Hopkins University ACIS-S NONE 47.00 28200109 Couperus Smith College ACIS-S NONE 20.00 28700094 Zakamska Johns Hopkins University ACIS-S NONE 13.00 28700133 Plotkin University of Nevada Reno (UNR) ACIS-S NONE 15.00 28700147 Barrows University of Colorado (CU) ACIS-S NONE 100.00 28620210 Alatalo Johns Hopkins University ACIS-I NONE 90.00 28400064 Brightman California Institute of Technology (Caltech) ACIS-S NONE 10.00 28700310 Cox Clemson University ACIS-S NONE 50.00 28700285 Bauer Space Science Institute ACIS-I NONE 29.00 28500239 Romani Stanford University ACIS-S HETG 500.00 28200311 Günther MIT Kavli Institute ACIS-S NONE 234.00 28700209 Boorman Max-Planck-Institut fuer Extraterrestrische Physik (MPE), Garching ACIS-S NONE 15.00 28700310 Cox Clemson University ACIS-S NONE 47.00 28800073 Mantz Stanford University ACIS-S NONE 30.00 28620210 Alatalo Johns Hopkins University ACIS-I NONE 29.00 28500239 Romani Stanford University ACIS-S NONE 10.00 28700310 Cox Clemson University ACIS-S NONE 100.00 28200069 Aghakhanloo University of Virginia (UVA) ACIS-S NONE 20.00 28700133 Plotkin University of Nevada Reno (UNR) ACIS-S NONE 15.00 28500136 Kurpas Leibniz-Institut fuer Astrophysik Potsdam (AIP) ACIS-S NONE 80.00 28700237 Soria INAF-Turin ACIS-S NONE 50.00 28200109 Couperus Smith College ACIS-I NONE 35.00 28500259 Klingler NASA/GSFC/UMBC ACIS-S NONE 25.00 28700147 Barrows University of Colorado (CU) ACIS-S NONE 49.00 28700115 Chen Harvard University ACIS-S NONE 30.00 28500136 Kurpas Leibniz-Institut fuer Astrophysik Potsdam (AIP) ACIS-S NONE 300.00 28700083 Wong SUNY, Brockport ACIS-I NONE 35.00 28500259 Klingler NASA/GSFC/UMBC ACIS-S NONE 10.00 28500304 A.J. University of California - Berkeley ACIS-I NONE 50.00 28700103 Gorski Northwestern University HRC-I NONE 32.50 28800053 Solhaug University of Chicago ACIS-S NONE 20.00 28700094 Zakamska Johns Hopkins University ACIS-S NONE 25.00 28700278 Ji University of Cambridge ACIS-S NONE 20.00 28700310 Cox Clemson University ACIS-S NONE 10.00 28500304 A.J. University of California - Berkeley ACIS-S NONE 148.00 28620107 Su University of Kentucky (UK) ACIS-S NONE 10.00 28500304 A.J. University of California - Berkeley ACIS-I NONE 120.00 28800257 Su University of Kentucky (UK) HRC-I NONE 750.00 28700055 Schellenberger Smithsonian Astrophysical Observatory (SAO) ACIS-S NONE 5.00 28700297 Neilsen Villanova University ACIS-S NONE 80.00 28400281 Ducci Eberhard Karls Universitaet Tuebingen ACIS-S NONE 20.00 28700094 Zakamska Johns Hopkins University ACIS-S NONE 20.00 28700094 Zakamska Johns Hopkins University HRC-I NONE 50.00 28620162 Irwin University of Alabama, Tuscaloosa (UA) ACIS-S NONE 50.00 28620162 Irwin University of Alabama, Tuscaloosa (UA) ACIS-S NONE 20.00 28700094 Zakamska Johns Hopkins University ACIS-S NONE 20.00 28700094 Zakamska Johns Hopkins University ACIS-S NONE 10.00 28500304 A.J. University of California - Berkeley ACIS-S NONE 26.00 28800120 Schellenberger Smithsonian Astrophysical Observatory (SAO) ACIS-S NONE 26.00 28800120 Schellenberger Smithsonian Astrophysical Observatory (SAO) ACIS-S NONE 26.00 28800120 Schellenberger Smithsonian Astrophysical Observatory (SAO) ACIS-S NONE 26.00 28800120 Schellenberger Smithsonian Astrophysical Observatory (SAO) ACIS-S NONE 26.00 28800120 Schellenberger Smithsonian Astrophysical Observatory (SAO) ACIS-S NONE 26.00 28800120 Schellenberger Smithsonian Astrophysical Observatory (SAO) ACIS-S NONE 26.00 28800120 Schellenberger Smithsonian Astrophysical Observatory (SAO) ACIS-S NONE 20.00 28700094 Zakamska Johns Hopkins University HRC-I NONE 10.00 28200065 Nunez Columbia University HRC-I NONE 7.00 28200065 Nunez Columbia University ACIS-S NONE 2.00 28700129 Pooley Eureka Scientific HRC-I NONE 5.00 28200065 Nunez Columbia University ACIS-S NONE 50.00 28700285 Bauer Space Science Institute HRC-I NONE 5.00 28200065 Nunez Columbia University HRC-I NONE 17.00 28200065 Nunez Columbia University ACIS-S NONE 130.00 28400031 Crook-Mansour University of Oxford HRC-I NONE 39.00 28200065 Nunez Columbia University HRC-I NONE 11.00 28200065 Nunez Columbia University ACIS-S NONE 20.00 28400031 Crook-Mansour University of Oxford HRC-I NONE 28.00 28200065 Nunez Columbia University HRC-I NONE 5.00 28200065 Nunez Columbia University HRC-I NONE 37.00 28200065 Nunez Columbia University ACIS-S NONE 20.00 28700094 Zakamska Johns Hopkins University HRC-I NONE 6.00 28200065 Nunez Columbia University HRC-I NONE 5.00 28200065 Nunez Columbia University ACIS-I NONE 15.00 28500239 Romani Stanford University HRC-I NONE 11.00 28200065 Nunez Columbia University HRC-I NONE 5.00 28200065 Nunez Columbia University ACIS-S NONE 10.00 28500304 A.J. University of California - Berkeley ACIS-S NONE 25.00 28700310 Cox Clemson University HRC-I NONE 8.00 28200065 Nunez Columbia University ACIS-I NONE 29.00 28500239 Romani Stanford University ACIS-S NONE 10.00 28500304 A.J. University of California - Berkeley ACIS-S NONE 10.00 28500304 A.J. University of California - Berkeley HRC-I NONE 30.00 28200140 AYRES University of Colorado (CU) HRC-I NONE 19.00 28200065 Nunez Columbia University ACIS-S NONE 7.00 28700133 Plotkin University of Nevada Reno (UNR) HRC-I NONE 16.00 28200065 Nunez Columbia University HRC-I NONE 26.00 28200065 Nunez Columbia University HRC-I NONE 11.00 28200065 Nunez Columbia University HRC-I NONE 30.00 28200140 AYRES University of Colorado (CU) HRC-I NONE 19.00 28200065 Nunez Columbia University ACIS-S NONE 13.00 28620162 Irwin University of Alabama, Tuscaloosa (UA) ACIS-S NONE 220.00 28800104 O'Sullivan Smithsonian Astrophysical Observatory (SAO) HRC-I NONE 27.00 28200065 Nunez Columbia University ACIS-S NONE 25.00 28700147 Barrows University of Colorado (CU) ACIS-S NONE 10.00 28700310 Cox Clemson University HRC-I NONE 16.00 28200065 Nunez Columbia University HRC-I NONE 8.00 28200065 Nunez Columbia University HRC-I NONE 18.00 28200065 Nunez Columbia University ACIS-S NONE 148.00 28620107 Su University of Kentucky (UK) ACIS-S NONE 49.00 28700142 CAGLAR Texas A&M University HRC-I NONE 28.00 28200065 Nunez Columbia University ACIS-S NONE 10.00 28500304 A.J. University of California - Berkeley ACIS-S NONE 50.00 28500254 Kargaltsev The George Washington University (GWU) ACIS-S HETG 80.00 28300218 Olbemo Washington University in St. Louis ACIS-S NONE 80.00 28700144 Vito INAF/OAS - Bologna ACIS-S NONE 2.00 28700129 Pooley Eureka Scientific ACIS-S NONE 20.00 28700094 Zakamska Johns Hopkins University ACIS-S NONE 20.00 28700094 Zakamska Johns Hopkins University ACIS-S NONE 10.00 28700310 Cox Clemson University ACIS-S NONE 20.00 28700094 Zakamska Johns Hopkins University ACIS-S NONE 21.00 28700133 Plotkin University of Nevada Reno (UNR) ACIS-S NONE 10.00 28700147 Barrows University of Colorado (CU) ACIS-S NONE 22.00 28700129 Pooley Eureka Scientific ACIS-S NONE 246.00 28700101 Vito INAF/OAS - Bologna ACIS-S NONE 100.00 28700313 Koss Eureka Scientific ACIS-I NONE 540.00 28800158 Russell University of Nottingham ACIS-I NONE 60.00 28910274 Park Chungbuk National University (CBNU) ACIS-I NONE 35.00 28500259 Klingler NASA/GSFC/UMBC ACIS-S NONE 50.00 28700285 Bauer Space Science Institute ACIS-S NONE 154.00 28620171 Bayliss University of Cincinnati ACIS-S NONE 65.00 28400031 Crook-Mansour University of Oxford ACIS-S NONE 200.00 28400116 Zhao University of Southampton ACIS-S NONE 20.70 28700267 Stern Caltech - JPL ACIS-S NONE 25.00 28700250 Michail Smithsonian Astrophysical Observatory (SAO) ACIS-S NONE 25.00 28700250 Michail Smithsonian Astrophysical Observatory (SAO) ACIS-S NONE 25.00 28700250 Michail Smithsonian Astrophysical Observatory (SAO) ACIS-S NONE 25.00 28700250 Michail Smithsonian Astrophysical Observatory (SAO) ACIS-I NONE 100.00 28910275 Stel University of Modena and Reggio Emilia ACIS-S NONE 10.00 28700194 Dai University of Oklahoma (OU) ACIS-S HETG 260.00 28400268 Rogantini University of Chicago ACIS-S NONE 15.00 28500136 Kurpas Leibniz-Institut fuer Astrophysik Potsdam (AIP) ACIS-I NONE 29.00 28500239 Romani Stanford University HRC-I NONE 30.00 28200140 AYRES University of Colorado (CU) ACIS-S NONE 15.00 28400031 Crook-Mansour University of Oxford ACIS-S NONE 100.00 28200030 Morii Smithsonian Astrophysical Observatory (SAO) ACIS-S HETG 330.00 28400268 Rogantini University of Chicago ACIS-S NONE 20.00 28400031 Crook-Mansour University of Oxford ACIS-I NONE 60.00 28500222 Gagnon The George Washington University (GWU) ACIS-S NONE 450.00 Alt 28500176 Ng McGill University ACIS-S NONE 450.00 Alt 28500176 Ng McGill University ACIS-S NONE 450.00 Alt 28500176 Ng McGill University ACIS-S NONE 450.00 Alt 28500176 Ng McGill University ACIS-S NONE 450.00 Alt 28500176 Ng McGill University ACIS-S NONE 450.00 Alt 28500176 Ng McGill University ACIS-S HETG 50.00 28400204 Marra INAF/IAPS - ROMA ACIS-S NONE 450.00 Alt 28500176 Ng McGill University ACIS-S NONE 450.00 Alt 28500176 Ng McGill University ACIS-I NONE 420.00 28500327 Klingler NASA/GSFC/UMBC ACIS-S NONE 450.00 Alt 28500176 Ng McGill University ACIS-S NONE 68.00 28800073 Mantz Stanford University ACIS-I NONE 15.00 28500239 Romani Stanford University ACIS-S NONE 165.00 28700102 Isla Universita di Bologna HRC-I NONE 30.00 28200353 Lisse Johns Hopkins University ACIS-S NONE 50.00 28200231 Kastner Rochester Institute of Technology (RIT) ACIS-S HETG 62.00 28400068 Fijma European Southern Observatory, Germany (ESO) ACIS-S NONE 200.00 28400157 Fruscione Smithsonian Astrophysical Observatory (SAO) ACIS-I NONE 15.00 28500239 Romani Stanford University ACIS-I NONE 352.00 28800215 McDonald Massachusetts Institute of Technology (MIT) ACIS-S NONE 15.00 28700310 Cox Clemson University ACIS-S NONE 96.00 28800159 Flores Rutgers University ACIS-S NONE 10.00 28700310 Cox Clemson University ACIS-S NONE 35.00 28200109 Couperus Smith College ACIS-S HETG 157.00 28700251 Mehdipour University of Michigan ACIS-I NONE 29.00 28500239 Romani Stanford University ACIS-S NONE 48.00 28200109 Couperus Smith College ACIS-S NONE 80.00 28700285 Bauer Space Science Institute ACIS-S NONE 50.00 28700362 Pasham Eureka Scientific ACIS-S NONE 90.00 28700134 Ighina Smithsonian Astrophysical Observatory (SAO) ACIS-I NONE 218.00 28800215 McDonald Massachusetts Institute of Technology (MIT) ACIS-S NONE 76.00 28620107 Su University of Kentucky (UK) HRC-I NONE 20.00 28200315 Monsch Smithsonian Astrophysical Observatory (SAO) Center for Astrophysics | Harvard & Smithsonian ACIS-S NONE 40.00 28200109 Couperus Smith College ACIS-S NONE 20.00 28700310 Cox Clemson University ACIS-S NONE 2.00 28700129 Pooley Eureka Scientific ACIS-S NONE 100.00 28700190 Sisk Reynes Smithsonian Astrophysical Observatory (SAO) ACIS-I NONE 243.00 28800215 McDonald Massachusetts Institute of Technology (MIT) ACIS-S NONE 20.00 28700094 Zakamska Johns Hopkins University ACIS-S NONE 150.00 28800150 Walker University of Alabama, Huntsville (UAH) target="_top"> alt="Center for operated for NASA by 60 Garden Email: 1998-. 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