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OBSID:
25179
 Title:
Surveying Late-Time X-ray Emission in VLASS Detected Supernovae   
Investigator:
Stroh
 Observer:
MARGUTTI, RAFFAELLA
 Phone:
8474918637
 Email:
rafmargutti@gmail.com
Target Name:
SN1986J
 Sequence Number:
503302
 Instrument:
ACIS-S
 Grating:
NONE
 SI Mode:
TE_00914B
 Raster Scan:
N
 Annotated DOT:
NOV0121a

Proposal Number:
23500115
 Right Ascension:
35.6304
 Declination:
42.3325
 Status:
archived
 Start Date:
2021-11-03 20:59:45
Category:
SN, SNR AND ISOLATED NS
 Type:
GO
 AO Cycle:
23
 Dither Flag:
Y
 Y Offset:
0
 Z Offset:
0
Est. Count Rate:
0.006
 Order-1 Count Rate:

 Exposure Time:
20
 Time Remaining:
19.691
 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
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:
Radio and X-ray observations of supernovae (SNe) acquired in the poorly sampled phase of years to decades post-explosion are necessary to drive progress in several fundamental areas of explosive transient research. Bright emission ~years to decades post explosion of extragalactic SNe may be due to A) shock-interaction with the circumstellar medium; or B) the emergence of radiation from a pulsar wind nebula. A solid identification of the scenarios above would lead to significant advances in our understanding of the physics of stellar explosions, their progenitors, and their remnants. We propose the first systematic late-time X-ray survey of SNe with bright detected radio emission.

psci Run:
250
 Processing Date:
Nov 16 2021
 psci Directory:
/nfs/maaxnew/r3/fc/acis117e/acis117.log
OBSID:
25179
 SIM Mode:
ACIS-S
 OTG Mode:
NONE
 Seq Number:
503302
 Target Name:
SN1986J
 AO:
23
Start VCDU:
77980:104
 Start Time (UTC):
307:76685.225
 Stop Time (UTC):
308:09988.002
 Kilosecs:
19.7
 % Frames:
100.0
 # CCDs:
S1
# Frames:
6479
 # Events:
184043
 Events/sec:
9
 PSCI errors:
0
 % drops:
0.0
 Bias Errs:
0
 FP Temp:
-115.6
Parameter Block:
0x00914014
 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:
250

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