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OBSID:
24959
 Title:
Studying Two Massive Clusters to be used as Gravitational Lens Telescopes  
Investigator:
Boehringer
 Observer:
Boehringer, Hans
 Phone:
+498921806964
 Email:
hxb@mpe.mpg.de
Target Name:
RX J1717.1+2931
 Sequence Number:
801939
 Instrument:
ACIS-S
 Grating:
NONE
 SI Mode:
TE_00A5AB
 Raster Scan:
N
 Annotated DOT:
JUL2522a

Proposal Number:
23800004
 Right Ascension:
259.278
 Declination:
29.5228
 Status:
archived
 Start Date:
2022-07-25 02:33:44
Category:
CLUSTERS OF GALAXIES
 Type:
GO
 AO Cycle:
23
 Dither Flag:
Y
 Y Offset:
0
 Z Offset:
0
Est. Count Rate:
0.5
 Order-1 Count Rate:

 Exposure Time:
10
 Time Remaining:
10.116
 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:
1
 Optional Chips:
I2
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:
This is a proposal to obtain complementary information for two very compact clusters in an XMM-Newton project to study massive clusters to be used as gravitational lenses. They have been found in a systematic search for massive clusters at z = 0.25 - 0.5 with no detailed follow-up X-ray observations so far. The main goal of this project is to characterise the structure and mass distribution of the clusters to provide the information for the construction of gravitational lense models. Both clusters show very dense and compact cores and Chandra observations are necessary to help in modelling the strong lensing regime of the systems.

psci Run:
395
 Processing Date:
Jul 28 2022
 psci Directory:
/nfs/maaxnew/r3/ff/acis120e/acis120.log
OBSID:
24959
 SIM Mode:
ACIS-S
 OTG Mode:
NONE
 Seq Number:
801939
 Target Name:
RX_J1717.1+2931
 AO:
23
Start VCDU:
115996:056
 Start Time (UTC):
206:10085.571
 Stop Time (UTC):
206:20212.298
 Kilosecs:
10.1
 % Frames:
100.0
 # CCDs:
I3
# Frames:
3224
 # Events:
198070
 Events/sec:
19
 PSCI errors:
0
 % drops:
0.0
 Bias Errs:
0
 FP Temp:
-111.3
Parameter Block:
0x00a5a024
 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?:
Yes
 Trickle?:
Yes
 Bias Run:
395

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