On the nature of the intermediate-redshift population of luminous compact blue galaxies

Details On the nature of the intermediate-redshift population of luminous compact blue galaxies On the nature of the intermediate-redshift population of luminous compact blue galaxies

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005assl..329p..26h&link_type=abstract

Starbursts: From 30 Doradus to Lyman Break Galaxies, Held in Cambridge, UK, 6-10 September 2004. Edited by R. de Grijs and R.M.

Astronomy and Astrophysics

Astrophysics

Scientific paper

We compare some properties of six Luminous Compact Blue Galaxies (LCBGs) at intermediate redshift to those of the brightest local H II galaxies and starburst nuclei. The LCBGs at intermediate redshift were observed with the WFPC2 and STIS instruments on board the Hubble Space Telescope (HST). The following properties are investigated: (i) Hβ luminosities, (ii) Hβ equivalent widths, (iii) ionization degrees, and (iv) oxygen abundances. The six observed LCBGs are blue (B-V ≤ 0.6), compact (μB≤ 21.0 mag arcsec-2) field galaxies with redshifts 0.095 ≤ z ≤ 0.525 and absolute magnitudes MB between -17.5 and -21.1. They turn out to be very similar to the brightest local H II galaxies in terms of the properties studied.

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