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OBSID:
24741
 Title:
Building a Legacy Progenitor-Selected Cluster Sample at z>1, with ACIS GTO 
Investigator:
Garmire
 Observer:
McDonald, Michael
 Phone:
781-507-3513
 Email:
mcdonald@space.mit.edu
Target Name:
SPT-CLJ2357-5421
 Sequence Number:
801929
 Instrument:
ACIS-I
 Grating:
NONE
 SI Mode:
TE_00458B
 Raster Scan:
N
 Annotated DOT:
SEP2721a

Proposal Number:
22800657
 Right Ascension:
359.269
 Declination:
-54.3594
 Status:
archived
 Start Date:
2021-10-02 23:57:52
Category:
CLUSTERS OF GALAXIES
 Type:
GTO
 AO Cycle:
22
 Dither Flag:
Y
 Y Offset:
-1.5
 Z Offset:
1.5
Est. Count Rate:
0.0042
 Order-1 Count Rate:

 Exposure Time:
29
 Time Remaining:
30.800
 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:
S2
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:
Unveiling the properties and evolution of the intracluster medium (ICM) and the AGN-star formation-halo connection in early-forming systems all the way back to z ~ 3 will be among the primary science goals of both Athena and Chandra successor missions (e.g., Lynx, AXIS). While many of the most exciting questions about the initial formation of galaxy clusters must wait for these next-generation X-ray missions, the complementarity between Chandra observations and millimeter data offers a unique opportunity to probe cluster physics in the 1 < z < 2 range. Hence, we propose to observe 3 clusters from the SPTpol catalog at z > 0.9 to complete a legacy-class sample of 76 clusters spanning 0.2 < z < 1.4 and selected to be the progenitors of well-studied nearby clusters such as Perseus and Coma.

psci Run:
145
 Processing Date:
Oct 10 2021
 psci Directory:
/nfs/maaxnew/r3/fc/acis117c/acis117.log
OBSID:
24741
 SIM Mode:
ACIS-I
 OTG Mode:
NONE
 Seq Number:
801929
 Target Name:
SPT-CLJ2357-542
 AO:
22
Start VCDU:
125063:080
 Start Time (UTC):
276:00770.516
 Stop Time (UTC):
276:31581.163
 Kilosecs:
30.8
 % Frames:
100.0
 # CCDs:
I5
# Frames:
9809
 # Events:
1144496
 Events/sec:
37
 PSCI errors:
0
 % drops:
0.0
 Bias Errs:
0
 FP Temp:
-113.2
Parameter Block:
0x00458034
 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:
145

pgf@space.mit.edu Mon Mar 31 10:36:39 EST 2025