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OBSID:
25886
 Title:
Chandra Observations of The Most Distant Galaxy Protocluster Anchored by A Luminous Quasar at z=6.63
Investigator:
Wang
 Observer:
Wang, Feige
 Phone:
5203603967
 Email:
fgwang.astro@gmail.com
Target Name:
DELS J091054.53-041406.8
 Sequence Number:
704435
 Instrument:
ACIS-I
 Grating:
NONE
 SI Mode:
TE_006E6B
 Raster Scan:
N
 Annotated DOT:
JAN0923a

Proposal Number:
23700397
 Right Ascension:
137.727
 Declination:
-4.23522
 Status:
archived
 Start Date:
2023-01-12 21:04:44
Category:
ACTIVE GALAXIES AND QUASARS
 Type:
GO
 AO Cycle:
23
 Dither Flag:
Y
 Y Offset:
-0.75
 Z Offset:
0
Est. Count Rate:
0.000153
 Order-1 Count Rate:

 Exposure Time:
30
 Time Remaining:
27.385
 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:
1
 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 to perform deep Chandra observations of the most distant galaxy protocluster known at z=6.63; it is also the first protocluster anchored by a luminous quasar that ever discovered at z>6.5. The Chandra observations will identify moderately luminous AGNs and measure AGN fraction in protocluster member galaxies. This will allow us to investigate AGN fueling mechanisms and probe AGN feedback on cluster formation in the reionization-era. The combination of the Chandra observations with multi-wavelength observations will unveil the nature of this unique system. It will also deliver a deep X-ray spectrum of a luminous quasar, allowing us to characterize the accretion physics of the central black hole and search for extended X-ray lobe, an important diagnostic of AGN feedback.

psci Run:
51
 Processing Date:
Jan 18 2023
 psci Directory:
/nfs/maaxnew/r3/fi/acis123a/acis123.log
OBSID:
25886
 SIM Mode:
ACIS-I
 OTG Mode:
NONE
 Seq Number:
704435
 Target Name:
DELS_J091054.53
 AO:
23
Start VCDU:
85398:064
 Start Time (UTC):
012:77159.225
 Stop Time (UTC):
013:18158.588
 Kilosecs:
27.4
 % Frames:
100.0
 # CCDs:
I4
# Frames:
8723
 # Events:
567598
 Events/sec:
20
 PSCI errors:
0
 % drops:
0.0
 Bias Errs:
1
 FP Temp:
-114.4
Parameter Block:
0x006e6034
 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:
51

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