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OBSID:
24116
Title:
Flows of hot Baryons in the Milky Way center: How are fountains & chimneys linked to the Galactic-scale outflow?
Investigator:
Ponti
Observer:
Anastasopoulou, Konstantina
Phone:
393756720322
Email:
konstantina.anastasopoulou@inaf.it
Target Name:
GDHIdp45
Sequence Number:
901680
Instrument:
ACIS-I
Grating:
NONE
SI Mode:
TE_006E6
Raster Scan:
N
Annotated DOT:
JUL1822a

Proposal Number:
22910273
Right Ascension:
265.173
Declination:
-29.9072
Status:
archived
Start Date:
2022-07-21 16:49:59
Category:
GALACTIC DIFFUSE EMISSION AND SURVEYS
Type:
GO
AO Cycle:
22
Dither Flag:
Y
Y Offset:
0
Z Offset:
0
Est. Count Rate:
0.06
Order-1 Count Rate:

Exposure Time:
4.333
Time Remaining:
4.242
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:
Covering a 24 square degrees field at the centre of the Milky Way with 7 ks Chandra exposures will allow us to measure the flows of hot baryons from the core of the Milky Way out into the Galactic halo. This will ultimately allow us to determine the distribution of hot plasma that is feeding into the halo, and to understand whether such an outflow is important for feeding and sustaining the Galactic corona and the circum-galactic medium. In addition to our immediate goal of probing the energy flow out of the central Galaxy, this project will produce a legacy dataset that will be used in the future for multiple purposes, including multi-wavelength and time-domain investigations.

Remarks:
No requirement on the roll angle is placed because the pointing will be overlapping. The coordinates specify the approximate center of the field, which is composed of 6 observations.

psci Run:
370
Processing Date:
Jul 28 2022
psci Directory:
/nfs/maaxnew/r3/ff/acis120e/acis120.log
OBSID:
24116
SIM Mode:
ACIS-I
OTG Mode:
NONE
Seq Number:
901680
Target Name:
GDHIdp45
AO:
22
Start VCDU:
107042:048
Start Time (UTC):
202:61050.728
Stop Time (UTC):
202:65303.675
Kilosecs:
4.3
% Frames:
100.0
# CCDs:
I4
# Frames:
1354
# Events:
95461
Events/sec:
22
PSCI errors:
0
% drops:
0.1
Bias Errs:
0
FP Temp:
-118.1
Parameter Block:
0x006e7034
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?:
No
Trickle?:
Yes
Bias Run:
369


pgf@space.mit.edu Wed Mar 26 10:00:48 EST 2025