ELAIS Hα emitting galaxies (Pascual+, 2001)

Details ELAIS Hα emitting galaxies (Pascual+, 2001) ELAIS Hα emitting galaxies (Pascual+, 2001)

Jan 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002ycat..33790798p&link_type=abstract

VizieR On-line Data Catalog: J/A+A/379/798. Originally published in: 2001A&A...379..798P

Other

Galaxies: Photometry, Equivalent Widths

Scientific paper

We have carried out a survey searching for Hα emitting galaxies at z~0.24 using a narrow band filter tuned with the redshifted line. The total sky area covered was 0.19 square degrees within the redshift range 0.228 to 0.255 in a set of four fields in the ELAIS-N1 zone. This corresponds to a volume of 9.8x103Mpc3 and a look-back time of 3.6Gyr when H=50km/s/Mpc and q=0.5 are assumed. A total of 52 objects are selected as candidates for a broad band limiting magnitude of I~22.9, plus 16 detected only in the narrow band image for a narrow band limiting magnitude for object detection of 21.0. The threshold detection corresponds to about 20Å equivalent width with an uncertainty of ~+/-10Å. Point-like objects (15) were excluded from our analysis using CLASS_STAR parameter from SExtractor. The contamination from other emission lines such as [O II]λ3727, Hβ and [OIII]λλ4959,5007 at redshifts 1.2, 0.66 and 0.61 respectively is estimated, and found to be negligible at the flux limits of our sample. We find an extinction-corrected Hα luminosity density of (5.4+/-1.1)x1039erg/s/Mpc3.
Our survey for Hα emitting galaxies was carried out using the focal reducer CAFOS at the 2.2 m telescope in CAHA (Centro Astronomico Hispano-Aleman, Almeria, Spain). This instrument is equipped with a 2048x2048 Site#1d CCD with 24μm pixels (0.53" on the sky), which covers a circular area of 16'diameter.
(1 data file).

Affiliated with

Also associated with

No associations

Rating

ELAIS Hα emitting galaxies (Pascual+, 2001) 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 ELAIS Hα emitting galaxies (Pascual+, 2001), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and ELAIS Hα emitting galaxies (Pascual+, 2001) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1690244