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OBSID:
27367
 Title:
A Chandra view of massive Post-Starburst Galaxies      
Investigator:
Kraft
 Observer:
Goulding, Andy
 Phone:
6092589579
 Email:
Goulding@astro.princeton.edu
Target Name:
WISEA J002051.63+300049.5
 Sequence Number:
704846
 Instrument:
ACIS-S
 Grating:
NONE
 SI Mode:
TE_0045AB
 Raster Scan:
N
 Annotated DOT:
DEC0423a

Proposal Number:
24700516
 Right Ascension:
5.215
 Declination:
30.0138
 Status:
archived
 Start Date:
2023-12-04 21:35:20
Category:
ACTIVE GALAXIES AND QUASARS
 Type:
GTO
 AO Cycle:
24
 Dither Flag:
Y
 Y Offset:
0
 Z Offset:
0
Est. Count Rate:
0.005
 Order-1 Count Rate:

 Exposure Time:
34.9
 Time Remaining:
34.360
 Reqd Start Time:

 Reqd Stop Time:
Period:

 Epoch:

 Start of Period:

 End of Period:

 PS Margin:

 PE Margin:

 Max Segments:
0

ACIS Mode:
TE
 Standard?:
No
 BEP Mode:
VF
 Dropped Chip Count:
0
 Optional Chips:
S1 S4
On-Chip Summing?:
No
 Row Sum:

 Column Sum:

 Frame Time:
Subarray Mode:
NONE
 Starting Row:
0
 Row Count:
1023
 Subarray Frame Time:

Duty Cycle?:
No
 Cycle Count:
0
 Primary Exp Time:

 Secondary Exp Time:
Event Filter?:
No
 Filter Threshold:

 Filter Range:

 Bias Requested?:
No
 Bias Frequency:

 Bias After?:
No
 Spatial Window?:
No

Abstract:
Post-starburst galaxies, the direct product of the quenching process, may hold the key to understanding the physics of quenching and the role of active galactic nuclei (AGN). We propose to observe a sample of WISE-luminous massive (M*~10^11Msun) post-starburst galaxies at z~0.7, whose spectra indicate an abrupt end to a massive starburst. We do not know if the WISE luminosity arises from an AGN, in which case our census of AGN in these galaxies is very incomplete, or from buried star formation, in which case the galaxies are not quenched. Only Chandra can definitively distinguish between these two options.

psci Run:
75
 Processing Date:
Dec 9 2023
 psci Directory:
/nfs/maaxnew/r3/fl/acis126a/acis126.log
OBSID:
27367
 SIM Mode:
ACIS-S
 OTG Mode:
NONE
 Seq Number:
704846
 Target Name:
WISEA_J002051.6
 AO:
24
Start VCDU:
110537:120
 Start Time (UTC):
338:78569.015
 Stop Time (UTC):
339:26541.499
 Kilosecs:
34.4
 % Frames:
100.0
 # CCDs:
I5
# Frames:
10943
 # Events:
876805
 Events/sec:
25
 PSCI errors:
0
 % drops:
0.0
 Bias Errs:
1
 FP Temp:
-111.5
Parameter Block:
0x0045a034
 Window Block:
-
 # Windows:
0
 FEP Mode:
Te5x5
 BEP Mode:
F
 Start Row:
0
 # Rows:
1024
Primary Exposure:
31
 Secondary Exposure:
0
 Duty Cycle:
0
 Summing?:
No
 Bias?:
Yes
 Trickle?:
Yes
 Bias Run:
75

pgf@space.mit.edu Mon Apr 14 22:55:55 EST 2025