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OBSID:
26188
 Title:
Determining the Mass of the IC 10 X-1 Black Hole with Coordinated Multiwavelength Observations
Investigator:
Binder
 Observer:
Binder, Breanna
 Phone:
909-869-4029
 Email:
babinder@cpp.edu
Target Name:
IC 10 X-1
 Sequence Number:
402354
 Instrument:
ACIS-S
 Grating:
NONE
 SI Mode:
TE_00A22B
 Raster Scan:
N
 Annotated DOT:
DEC3021a

Proposal Number:
22408813
 Right Ascension:
5.12121
 Declination:
59.2811
 Status:
archived
 Start Date:
2022-01-07 06:09:02
Category:
BH AND NS BINARIES
 Type:
DDT
 AO Cycle:
22
 Dither Flag:
Y
 Y Offset:
-0.5
 Z Offset:
0.5
Est. Count Rate:
0.08
 Order-1 Count Rate:

 Exposure Time:
30
 Time Remaining:
30.073
 Reqd Start Time:

 Reqd Stop Time:
Period:
1.451
 Epoch:
58396.8
 Start of Period:
0.26
 End of Period:
0.74
 PS Margin:
0
 PE Margin:
0
 Max Segments:
0

ACIS Mode:
TE
 Standard?:
No
 BEP Mode:
F
 Dropped Chip Count:
2
 Optional Chips:
I2 I3 S2 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:
We request a 30 ks DDT Chandra/ACIS-S observation of the black hole (BH) + Wolf-Rayet (WR) binary IC 10 X-1 to complement approved Hubble/COS FUV spectroscopy and Swift/XRT+UVOT monitoring between 9-22 Nov 2021. The Chandra observation will allow us to determine the orbital phases at which the Hubble and Swift observations are obtained to high precision, model the X-ray spectrum and radiation field in which the FUV lines form, and constrain the period derivative Pdot of the system.

psci Run:
215
 Processing Date:
Jan 17 2022
 psci Directory:
/nfs/maaxnew/r3/fd/acis118d/acis118.log
OBSID:
26188
 SIM Mode:
ACIS-S
 OTG Mode:
NONE
 Seq Number:
402354
 Target Name:
IC_10_X-1
 AO:
22
Start VCDU:
116485:040
 Start Time (UTC):
007:23078.000
 Stop Time (UTC):
007:53162.655
 Kilosecs:
30.1
 % Frames:
100.0
 # CCDs:
S3
# Frames:
9578
 # Events:
826887
 Events/sec:
27
 PSCI errors:
0
 % drops:
0.0
 Bias Errs:
0
 FP Temp:
-114.6
Parameter Block:
0x00a22024
 Window Block:
-
 # Windows:
0
 FEP Mode:
Te3x3
 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:
215

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