Locating Compact Ly-alpha Emitting Galaxies at z=2.3--2.8: Analysis of Archival WFPC2 Medium-band Images

Computer Science

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Hst Proposal Id #8388 Distant Galaxies

Scientific paper

Medium-band imaging with HST/WFPC2 in the F410M filter has previously revealed a population of faint compact Lyman-Alpha emitters at z eq 2.4 around the radio galaxy 53W002 and in three random parallel F410M fields {Pascarelle Etal 1996, 1998}. We propose to analyze a dozen Cycle 7+8 WFPC2 fields in F410M and F467M to do a systematic search for compact Ly- alpha emitting objects at z 2.3-2.9. Several new deep observations in F410M and F467M are in the Archive, and several more cge 5-8 orbit parallels are planned in these filters for Cycles 7+8. With this data set, we will address the following science goals: bullet {1} Find 100 faint compact Ly-alpha emitting objects {in groups or filaments} at z=2.37+/-0.06 {F410M} & z=2.85+/-0.07 {F467M}, and confirm their redshifts with the 6.5m MMT. bullet {2} Determine the luminosity function of the compact emission line objects and constrain the luminous mass spectrum at z eq2.3-2.9. bullet {3} Determine the size distribution of these compact emission line objects and compare them to the sizes of galaxies seen today; bullet {4} Determine whether or not the variations in number counts from field to field of the compact Ly-alpha emitters found in previous observations are statistically significant; bullet {5} Determine their galaxy types, Ly- alpha fluxes, AGN fractions, and constrain their SFR.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Locating Compact Ly-alpha Emitting Galaxies at z=2.3--2.8: Analysis of Archival WFPC2 Medium-band Images does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Locating Compact Ly-alpha Emitting Galaxies at z=2.3--2.8: Analysis of Archival WFPC2 Medium-band Images, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Locating Compact Ly-alpha Emitting Galaxies at z=2.3--2.8: Analysis of Archival WFPC2 Medium-band Images will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-993450

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.