Multicolor detection of high-redshift quasars, 2: Five objects with Z greater than or approximately equal to 4

Details Multicolor detection of high-redshift quasars, 2: Five objects with Z greater than or approximately equal to 4 Multicolor detection of high-redshift quasars, 2: Five objects with Z greater than or approximately equal to 4

Oct 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994aj....108.1147s&link_type=abstract

The Astronomical Journal, vol. 108, no. 4, p. 1147-1155

Astronomy and Astrophysics

Astronomy

19

Astronomical Photography, Carbon, Lyman Alpha Radiation, Lyman Spectra, Quasars, Red Shift, Sky Surveys (Astronomy), Stellar Spectra, Stellar Spectrophotometry, Ultraviolet Astronomy, Visible Spectrum, Absorption Spectra, Astrometry, Charge Coupled Devices, Color-Color Diagram, Schmidt Telescopes, Spectroscopic Telescopes, Stellar Luminosity

Scientific paper

We report the results of a multicolor wide-field charge coupled device (CCD) survey designed to rediscover several BRI quasars previously found in a photographic survey by Irwin et al. (1991) but not fully documented in the literature. Here we provide spectra, redshifts, finding charts, magnitudes, and coordinates for four such BRI quasars. Follow-up observations were obtained for BRI 2235-03, a borderline Broad Absorption Line (BAL) object. A moderate resolution absorption line spectrum for the object shows a very dense Ly alpha forest and two C IV doublets at z greater than 3. Its visible spectrum is redder than those of the other quasars presented, although it is similar in the infrared. J, H, and K magnitudes are presented for this quasar, showing it to be one of the most luminous objects known. New J, H, and K photometry is presented for PC 1247+3406, the most distant quasar known. In the course of the survey we also discovered a new quasar with z=4.042. Its spectrum, coordinates, magnitudes, and finding chart are presented here as well.

Affiliated with

Also associated with

No associations

Rating

Multicolor detection of high-redshift quasars, 2: Five objects with Z greater than or approximately equal to 4 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 Multicolor detection of high-redshift quasars, 2: Five objects with Z greater than or approximately equal to 4, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multicolor detection of high-redshift quasars, 2: Five objects with Z greater than or approximately equal to 4 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1069715