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OBSID:
22975
 Title:
The growth of supermassive black holes in the first massive structures  
Investigator:
Canning
 Observer:
Noordeh, Emil
 Phone:
650-713-6474
 Email:
emiln@stanford.edu
Target Name:
SPT0348-62
 Sequence Number:
704002
 Instrument:
ACIS-I
 Grating:
NONE
 SI Mode:
TE_00458B
 Raster Scan:
N
 Annotated DOT:
DEC2820a

Proposal Number:
21700445
 Right Ascension:
57.2592
 Declination:
-62.3495
 Status:
archived
 Start Date:
2021-01-07 02:27:13
Category:
ACTIVE GALAXIES AND QUASARS
 Type:
GO
 AO Cycle:
21
 Dither Flag:
Y
 Y Offset:
0
 Z Offset:
0
Est. Count Rate:
3.9e-05
 Order-1 Count Rate:

 Exposure Time:
50
 Time Remaining:
49.361
 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:
We propose joint Chandra 250 ks and 8 orbit HST WFC3/F160W imaging of SPT0348-62, the highest-redshift (z=5.7), densest, massive proto-cluster yet. The sources so far confirmed to be in the SPT0348-62 protocluster are both remarkable, in mass and source density, and yet are only the tip of the iceberg. We propose observations which will identify and characterize all bright AGN which may be present within this rapidly forming structure, their host galaxy stellar masses and specific star formation rates.

psci Run:
49
 Processing Date:
Jan 24 2021
 psci Directory:
/nfs/maaxnew/r3/eZ/acis114b/acis114.log
OBSID:
22975
 SIM Mode:
ACIS-I
 OTG Mode:
NONE
 Seq Number:
704002
 Target Name:
SPT0348-62
 AO:
21
Start VCDU:
72117:056
 Start Time (UTC):
007:09924.130
 Stop Time (UTC):
007:59304.104
 Kilosecs:
49.4
 % Frames:
100.0
 # CCDs:
I5
# Frames:
15721
 # Events:
1821307
 Events/sec:
36
 PSCI errors:
0
 % drops:
0.0
 Bias Errs:
1
 FP Temp:
-117.4
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:
49

pgf@space.mit.edu Thu Apr 3 20:00:53 EST 2025