2004A&A...417..487C


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.21CEST08:49:38

2004A&A...417..487C - Astronomy and Astrophysics, volume 417, 487-498 (2004/4-2)

Integral field spectroscopy of extended Lyα emission from the DLA galaxy in Q2233+131.

CHRISTENSEN L., SANCHEZ S.F., JAHNKE K., BECKER T., WISOTZKI L., KELZ A., POPOVIC L.C. and ROTH M.M.

Abstract (from CDS):

This paper presents observations of an extended Lyman-α emission nebula surrounding the galaxy responsible for the Damped Lyman-α Absorption (DLA) line in the spectrum of the quasar Q2233+131. With the Potsdam Multi Aperture Spectrophotometer (PMAS) we measure the properties of the extended Lyα emission in an area of 3''x5'' having a total line flux of (2.8±0.3)x10–16erg/cm2/s, which at redshift z=3.15 corresponds to a luminosity of (2.4–0.2+0.3)x1043erg/s and a size of 23x38kpc. The location of the emission is spatially coincident with the previously detected DLA galaxy, but extends significantly beyond its limb. We argue that the Lyα emission is likely to be caused by an outflow from the DLA galaxy, presumably powered by star formation. In the case of negligible dust extinction, the Lyα luminosity indicates a star-formation rate of 19±10M/yr consistent with that derived from the UV continuum flux from the parent galaxy. The wind velocity indicated by the integral field spectra is of the order of several hundred km/s. We find no indication of emission originating in a rotating disk.

Abstract Copyright:

Journal keyword(s): galaxies: high redshift - galaxies: quasars: absorption lines - galaxies: kinematics and dynamics - galaxies: quasars: individual: Q2233+131

Simbad objects: 10

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Number of rows : 10

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 QSO B0151+0448 QSO 01 53 53.8925288742 +05 02 57.111954574   18.04 17.63     ~ 105 2
2 QSO B0528-2505 QSO 05 30 07.96279681 -25 03 29.8994010   18.17 17.34 17.7   ~ 382 0
3 QSO J0831+5245 QSO 08 31 41.7095363198 +52 45 17.620340544   19.2   14.5 13.9 ~ 472 1
4 QSO B1202-074 QSO 12 05 23.12 -07 42 32.4     17.5     ~ 343 5
5 LEDA 39402 H2G 12 17 17.093 -28 02 32.67   17       ~ 122 0
6 QSO B2059-360 QSO 21 02 44.6075037386 -35 53 07.084123633   19.18 18.62     ~ 51 0
7 BD+28 4211 HS* 21 51 11.0220905905 +28 51 50.366090892 8.922 10.25 10.58 10.656 10.831 sdO2VIIIHe5 721 0
8 LBQS 2206-1958A QSO 22 08 52.0727351941 -19 43 59.869072347   17.49 17.33     ~ 194 0
9 QSO J2236+1326 QSO 22 36 19.1927104940 +13 26 20.313308644   19.15 18.69     ~ 99 0
10 [CMV2003] QSO J2236+1326 abs 3.149 G 22 36 19.2800 +13 26 18.405           ~ 9 0

    Equat.    Gal    SGal    Ecl

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2019.10.21-08:49:38

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