Science Keywords: Select from 2 to 5 items.
0
Assigned ID: 3800
----- Attempting Submission 1 (Tue Aug 30 15:04:15 GMT 2022) -----
Joint Chandra/HST
0
----- Attempting Submission 1 (Tue Sep 06 01:01:14 GMT 2022) -----
----- Attempting Submission 2 (Sat Aug 12 03:24:28 GMT 2023) -----
Searching for X-ray nuclear sources in Virgo dwarfs in stripping
Over the last 10 - 15 years, a population of dwarf galaxies hosting massive black holes with masses of 10^4 - 10^6.5 M_Sun has been strongly suggested from observations. However, it is also clear that strong AGN in local dwarfs are rare. Dwarf galaxies in galaxy clusters are subject to ram pressure stripping (RPS) that can have an initial positive effect on star formation and AGN accretion, as suggested by studies of more massive galaxies. In this proposal, we select a sample of dwarf galaxies undergoing RPS in the Virgo cluster. New Chandra observations are proposed to search for X-ray AGN and X-ray binaries (including ULXs) in these dwarfs. Joint HST observations are also requested. This survey also complements previous Chandra surveys on massive Virgo galaxies with a similar depth.
We will observe 11 dwarf galaxies in the Virgo cluster with two filters F475W and F814W to study their star formation in these galaxies, search for nuclear sources and features indicative of ram pressure stripping. F475W and F814W observations will be done in one orbit with ACS/WFC so each galaxy will be observed for one orbit. The ACS aperture is typically WFC (WFCENTER for the 8th target), except for the three smallest galaxies (WFC1-FIX used). The ACS data in two high-throughput filters allow detections of faint features (e.g., individual star cluster associations, dust) and a detailed color map of these galaxies. Nuclear AGN and young star clusters in the stripped tails will also be searched for.
n/a
Supermassive Black Holes and Active Galaxies
6
false
false
false
false
false
false
false
false
SUPPORTED
GALAXY
DWARF SPHEROIDAL
EMISSION LINE NEBULA
NUCLEUS
STAR FORMING REGION
YES
A dwarf galaxy in the Virgo cluster
J2000
J2000
GALAXY
DWARF SPHEROIDAL
EMISSION LINE NEBULA
NUCLEUS
STAR FORMING REGION
YES
A dwarf galaxy in the Virgo cluster
J2000
J2000
GALAXY
DWARF SPHEROIDAL
EMISSION LINE NEBULA
NUCLEUS
STAR FORMING REGION
YES
A dwarf galaxy in the Virgo cluster
J2000
J2000
GALAXY
DWARF SPHEROIDAL
EMISSION LINE NEBULA
NUCLEUS
STAR FORMING REGION
YES
A dwarf galaxy in the Virgo cluster
J2000
J2000
GALAXY
DWARF SPHEROIDAL
EMISSION LINE NEBULA
NUCLEUS
STAR FORMING REGION
YES
A dwarf galaxy in the Virgo cluster
J2000
J2000
GALAXY
DWARF SPHEROIDAL
EMISSION LINE NEBULA
NUCLEUS
STAR FORMING REGION
YES
A dwarf galaxy in the Virgo cluster
J2000
J2000
GALAXY
DWARF SPHEROIDAL
EMISSION LINE NEBULA
NUCLEUS
STAR FORMING REGION
YES
A dwarf galaxy in the Virgo cluster
J2000
J2000
GALAXY
DWARF SPHEROIDAL
EMISSION LINE NEBULA
NUCLEUS
STAR FORMING REGION
YES
A dwarf galaxy in the Virgo cluster
J2000
J2000
GALAXY
DWARF SPHEROIDAL
EMISSION LINE NEBULA
NUCLEUS
STAR FORMING REGION
YES
A dwarf galaxy in the Virgo cluster
J2000
J2000
GALAXY
DWARF SPHEROIDAL
EMISSION LINE NEBULA
NUCLEUS
STAR FORMING REGION
YES
A dwarf galaxy in the Virgo cluster
J2000
J2000
GALAXY
DWARF SPHEROIDAL
EMISSION LINE NEBULA
NUCLEUS
STAR FORMING REGION
YES
A dwarf galaxy in the Virgo cluster
J2000
J2000
ACS/WFC
Imaging
No
No
F475W
ACS/WFC
Imaging
No
No
F814W
ACS/WFC
Imaging
No
No
F475W
ACS/WFC
Imaging
No
No
F814W
ACS/WFC
Imaging
No
No
F475W
ACS/WFC
Imaging
No
No
F814W
ACS/WFC
Imaging
No
No
F475W
ACS/WFC
Imaging
No
No
F814W
ACS/WFC
Imaging
No
No
F475W
ACS/WFC
Imaging
No
No
F814W
ACS/WFC
Imaging
No
No
F475W
ACS/WFC
Imaging
No
No
F814W
ACS/WFC
Imaging
No
No
F475W
ACS/WFC
Imaging
No
No
F814W
ACS/WFC
Imaging
No
No
F475W
ACS/WFC
Imaging
No
No
F814W
ACS/WFC
Imaging
No
No
F475W
ACS/WFC
Imaging
No
No
F814W
ACS/WFC
Imaging
No
No
F475W
ACS/WFC
Imaging
No
No
F814W
ACS/WFC
Imaging
No
No
F475W
ACS/WFC
Imaging
No
No
F814W
POS-TARG
DITHER
3.034
LINE
false
false
2
85.29
ACS-WFC-DITHER-LINE
1
false
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