SUMMARY OF SEQUENCE NUMBER 700114
SUMMARY OF SEQUENCE NUMBER 700114
Title: ACIS-I OBSERVATIONS OF THE MOST X-RAY LUMINOUS DWARF SEYFERT GALAXY MRK 273X
Observer: BOLLER
Subject Category: Active Galaxies and Quasars
Seq: 700114 ObsId: 00809
Long-term Plan bin: no LTS bin
ABSTRACT
Mrk 273 is an ultraluminous IRAS galaxy undergoing a major merger. A unique soft X-ray source Mrk 273x, 1.3' to the northeast of Mrk 273, was discovered by us. The optical counterpart is a nucleated dwarf galaxy with strong emission lines, typical for Seyfert galaxies. The X-ray luminosity is more than two orders of magnitude higher than that from any other dwarf galaxy. We propose to observe the Mrk 273 system with a 50ksec exposure using the ACIS imaging array, centered on the dwarf Seyfert galaxy. The observation will be used to study the spatial distribution, spectral shape and time variability of Mrk 273x and Mrk 273. Understanding of this system has important implications for the formation of nucleated dwarf galaxies and, if such sources are common, the cosmic X-ray background.
TARGET SUMMARY
| TARGET NAME |
RA | DEC |
TIME |
SI |
GRAT |
TYPE |
TC |
ROLL |
PRE |
PHASE |
MULTI |
PRI |
| MRK 273X |
206.197917 | 55.902778 |
50.00000 |
ACIS-S |
NONE |
GO |
no |
yes |
no |
no |
yes |
5 |
IMAGES
(NOTE: RASS images currently only available for targets LTS scheduled on or after Apr-09-2000)
PARAMETERS
Obscat Parameters
