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:
25448
Title:
A Chandra Survey of the Definitive Low-Luminosity AGN Sample    
Investigator:
Gultekin
Observer:
Gultekin, Kayhan
Phone:
7342557082
Email:
kayhan@umich.edu
Target Name:
UGC 4308
Sequence Number:
704492
Instrument:
ACIS-S
Grating:
NONE
SI Mode:
TE_0065AB
Raster Scan:
N
Annotated DOT:
JAN1022a

Proposal Number:
23700582
Right Ascension:
124.357
Declination:
21.6856
Status:
archived
Start Date:
2022-01-11 15:32:04
Category:
ACTIVE GALAXIES AND QUASARS
Type:
GO
AO Cycle:
23
Dither Flag:
Y
Y Offset:
0
Z Offset:
0
Est. Count Rate:
0.000128
Order-1 Count Rate:

Exposure Time:
15
Time Remaining:
15.139
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:
I2 S1
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:
The accretion mechanism and SED of black holes at low luminosities are critical questions regarding BHs, but they are still poorly understood. We propose for Chandra data of 22 LLAGN, that combined with existing archival data on 9, will yield a complete data set of all 31 galaxies in the Gemini/NIFS AO LLP black-hole mass campaign. These data will enable massive science: 1. Create the best LLAGN SEDs by virtue of the amount and quality of the data available for a sample with a broad range of black hole masses and Eddington ratios. 2. Specifically study the L_X-L_NIR relation, which is critical for understanding LLAGN and for making the most use of upcoming JWST data. 3. Add value to the Gemini LLP black-hole mass campaign by measuring BH accretion when Gemini find BH mass upper limits.

psci Run:
233
Processing Date:
Jan 17 2022
psci Directory:
/nfs/maaxnew/r3/fd/acis118d/acis118.log
OBSID:
25448
SIM Mode:
ACIS-S
OTG Mode:
NONE
Seq Number:
704492
Target Name:
UGC_4308
AO:
23
Start VCDU:
128048:000
Start Time (UTC):
011:56859.572
Stop Time (UTC):
011:72008.818
Kilosecs:
15.1
% Frames:
100.0
# CCDs:
I4
# Frames:
4823
# Events:
515382
Events/sec:
34
PSCI errors:
0
% drops:
0.0
Bias Errs:
0
FP Temp:
-117.8
Parameter Block:
0x0065a034
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:
233


pgf@space.mit.edu Sat Mar 29 10:37:19 EST 2025