C H A N D R A   S C I E N C E   C E N T E R
O B S E R V A T I O N   C A T A L O G

OBSID:
27133
 Title:
Unveiling the connection between AGN and massive gas reservoirs in protoclusters
Investigator:
Vito
 Observer:
Vito, Fabio
 Phone:
+390516357393
 Email:
fabio.vito@inaf.it
Target Name:
Slug nebula
 Sequence Number:
704651
 Instrument:
ACIS-I
 Grating:
NONE
 SI Mode:
TE_006E6B
 Raster Scan:
N
 Annotated DOT:
SEP2523a

Proposal Number:
24700127
 Right Ascension:
13.0122
 Declination:
1.02323
 Status:
archived
 Start Date:
2023-09-29 05:16:39
Category:
ACTIVE GALAXIES AND QUASARS
 Type:
GO
 AO Cycle:
24
 Dither Flag:
Y
 Y Offset:
0
 Z Offset:
0
Est. Count Rate:
4e-05
 Order-1 Count Rate:

 Exposure Time:
10
 Time Remaining:
10.391
 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:
2
 Optional Chips:
S2 S3
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:
Gas-rich galaxy protoclusters at z>2 are excellent laboratories to study the effect of environment on SMBH growth, the physics of inflowing gas, and the on-set of AGN feedback in overdense regions. We propose to observe with ACIS-I (710 ks in total) three protoclusters at z=2.3-3.2 that, due to their properties, will provide us with the best insights into such scientific issues. These structures were discovered as overdensities of sub-mm galaxies, Lya emitters, and confirmed AGN around bright QSOs. Moreover, enormous Lya nebulae (>200 kpc) have been detected in their central regions, pinpointing the presence of massive gas inflows. We aim at obtaining a complete census of AGN in the protoclusters, measuring the AGN contribution to Lya nebula powering, and detecting extended X-ray emission.

psci Run:
272
 Processing Date:
Oct 24 2023
 psci Directory:
/nfs/maaxnew/r3/fk/acis125d/acis125.log
OBSID:
27133
 SIM Mode:
ACIS-I
 OTG Mode:
NONE
 Seq Number:
704651
 Target Name:
Slug_nebula
 AO:
24
Start VCDU:
65983:112
 Start Time (UTC):
272:20283.051
 Stop Time (UTC):
272:30686.207
 Kilosecs:
10.4
 % Frames:
100.0
 # CCDs:
I4
# Frames:
3312
 # Events:
160878
 Events/sec:
15
 PSCI errors:
0
 % drops:
0.0
 Bias Errs:
0
 FP Temp:
-111.6
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:
272

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