A Sub--galactic Pair at Z = 5.35

Details A Sub--galactic Pair at Z = 5.35 A Sub--galactic Pair at Z = 5.35

May 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aas...192.7007s&link_type=abstract

American Astronomical Society, 192nd AAS Meeting, #70.07; Bulletin of the American Astronomical Society, Vol. 30, p.926

Other

Scientific paper

The faint (I ~ 26) close pair of galaxies near the edge of chip 3 in the HDF (HDF 3--951) was selected for spectroscopic study because of its peculiar color, with V - I ~ 2.5 and fairly flat AB--colors into the near--IR. The resulting photometric redshift is z = 5.7. Deep Keck/LRIS spectroscopic observations yield a low signal--to--noise spectrum with a large discontinuity at 7720 Angstroms, and a flat continuum at longer wavelengths. The break has an amplitude > 7, and is thus unlikely to be any of the familiar discontinuities seen in optical spectra of low redshift galaxies. The most likely interpretation is the sudden onset of the Lyalpha forest for a young, star--forming galaxy at z = 5.35. The amplitude of the break is larger than seen in other distant galaxies and quasars, with D_A ~ 0.9. For H_0 = 50 Hdeg km s(-1) Mpc(-1) , q_0 = 0.5, we derive a projected physical separation of ~ 3 kpc for the galaxy pair, and ~ 0.5 L1500(*) luminosities (relative to the z ~ 3 Lyman--break population; Dickinson 1998). We speculate that the Lyalpha clouds which stochastically depress the lambda_rest < 1216 Angstroms, continuum may have an additional continuous Hriptsize I absorption due to the long ``missing'' Gunn--Peterson effect.

Affiliated with

Also associated with

No associations

Rating

A Sub--galactic Pair at Z = 5.35 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 A Sub--galactic Pair at Z = 5.35, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Sub--galactic Pair at Z = 5.35 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1365606