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OBSID:
26568
 Title:
A Test to Establish that SS 433 is an Ultraluminous X-ray Source   
Investigator:
Marshall
 Observer:
Marshall, Herman
 Phone:
6172538573
 Email:
hermanm@space.mit.edu
Target Name:
SS 433
 Sequence Number:
402426
 Instrument:
HRC-I
 Grating:
NONE
 SI Mode:
H2C_0002B
 Raster Scan:
N
 Annotated DOT:
MAY2024a

Proposal Number:
24400466
 Right Ascension:
287.957
 Declination:
4.98273
 Status:
archived
 Start Date:
2024-05-24 07:03:40
Category:
BH AND NS BINARIES
 Type:
GO
 AO Cycle:
24
 Dither Flag:
Y
 Y Offset:

 Z Offset:
Est. Count Rate:
0.5
 Order-1 Count Rate:

 Exposure Time:
10.00
 Time Remaining:

 Reqd Start Time:

 Reqd Stop Time:
Period:

 Epoch:

 Start of Period:

 End of Period:

 PS Margin:

 PE Margin:

 Max Segments:
0

Trigger Level:
DEF
 Range Switch Lvl:
DEF
 Spect Mode:
DEF
 Antico Enab:
DEF
 Width Enab:
DEF
 Width Thold:
DEF
 Uld Enab:
DEF
 Upper Lvl Disc:
DEF
Blank Enab:
EDGE
 U Blank Hi:
119
 V Blank Hi:
119
 U Blank Lo:
69
 V Blank Lo:
69
 Py Shutter Pos:
DEF
 My Shutter Pos:
DEF
 Timing Mode:
N

Abstract:
The X-ray binary SS 433, a Galactic microquasar, has been hypothesized to be an ultraluminous X-ray source (ULX) like those observed in nearby galaxies. It is well known that the compact object emits oppositely directed semi-relativistic jets that carry a much larger kinetic power than observed radiatively in the X-ray band. Much of the radiative power may be obscured from our view, which would link SS 433 to ULXs. SS 433 has extended X-ray emission, like Sy 2s where the extended gas is photo-excited by the obscured nuclear X-ray emission. We propose to test the model that SS 433's extended X-ray emission is reflected core emission by tracking the variability of the arc-second scale extended emission and testing for the expected correlation with the core flux.

Remarks:
Swift observations should be carried out every 3 +/- 1 days at 1 ks each starting at least 80 days before the first of the HRC observations and extending throughout the Chandra campaign.

psci Run:
306
 Processing Date:
Jul 18 2024
 psci Directory:
/nfs/maaxnew/r3/fm/acis127c/acis127.log
OBSID:
26568
 SIM Mode:
HRC-I
 OTG Mode:
NONE
 Seq Number:
MAY2024a
 Target Name:
Eventless
 AO:
0
Start VCDU:
37733:120
 Start Time (UTC):
145:25609.841
 Stop Time (UTC):
145:37139.815
 Kilosecs:
11.5
 % Frames:
100.0
 # CCDs:
I2
# Frames:
3451
 # Events:
0
 Events/sec:
0
 PSCI errors:
0
 % drops:
0.0
 Bias Errs:
0
 FP Temp:
-110.0
Parameter Block:
0x00daa014
 Window Block:
0x00138014
 # Windows:
10
 FEP Mode:
Te3x3
 BEP Mode:
F
 Start Row:
0
 # Rows:
1024
Primary Exposure:
33
 Secondary Exposure:
0
 Duty Cycle:
0
 Summing?:
No
 Bias?:
Yes
 Trickle?:
No
 Bias Run:
306

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