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OBSID:
28264
 Title:
Clarifying the nature of IMBH-powered AGN candidates in well characterized host galaxies
Investigator:
Chilingarian
 Observer:
Chilingarian, Igor
 Phone:
8572505718
 Email:
igor.chilingarian@cfa.harvard.edu
Target Name:
SDSS J032440.77-004053.3
 Sequence Number:
705073
 Instrument:
ACIS-S
 Grating:
NONE
 SI Mode:
TE_0057AB
 Raster Scan:
N
 Annotated DOT:
NOV2023b

Proposal Number:
25700331
 Right Ascension:
51.1699
 Declination:
-0.681
 Status:
archived
 Start Date:
2023-11-22 04:46:19
Category:
ACTIVE GALAXIES AND QUASARS
 Type:
GO
 AO Cycle:
25
 Dither Flag:
Y
 Y Offset:
0
 Z Offset:
0
Est. Count Rate:
0.093
 Order-1 Count Rate:

 Exposure Time:
7.3
 Time Remaining:
7.956
 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:
S1 S4
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:
A linear correlation between luminosities in the optical [OIII]/Ha lines and X-ray in AGN is thought to manifest the ionization of low-density gas by the field of high-energy photons from the central black hole vicinity. It is used to estimate the AGN ionizing flux from optical spectra. Using optical SDSS spectra and X-ray catalogs, we identified a sample of 33 AGN powered by low-mass BHs (<600k MSun) which form a tight sub-linear relation that steepens and puffs up once more massive objects are included. Dust and AGN-driven outflows seems to be among the factors increasing the scatter. We propose to observe with Chandra a complete luminosity-limited sample of 18 low-mass AGN with available IFU spectroscopy in MaNGA/SAMI and pin down the transition mass where the L_X-L_O relation changes.

psci Run:
24
 Processing Date:
Dec 9 2023
 psci Directory:
/nfs/maaxnew/r3/fl/acis126a/acis126.log
OBSID:
28264
 SIM Mode:
ACIS-S
 OTG Mode:
NONE
 Seq Number:
705073
 Target Name:
SDSS_J032440.77
 AO:
25
Start VCDU:
77108:056
 Start Time (UTC):
326:18472.868
 Stop Time (UTC):
326:26467.815
 Kilosecs:
8.0
 % Frames:
100.0
 # CCDs:
S2
# Frames:
2629
 # Events:
82529
 Events/sec:
10
 PSCI errors:
0
 % drops:
0.0
 Bias Errs:
0
 FP Temp:
-110.5
Parameter Block:
0x0057a034
 Window Block:
-
 # Windows:
0
 FEP Mode:
Te5x5
 BEP Mode:
F
 Start Row:
0
 # Rows:
1024
Primary Exposure:
30
 Secondary Exposure:
0
 Duty Cycle:
0
 Summing?:
No
 Bias?:
Yes
 Trickle?:
Yes
 Bias Run:
24

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