UV star-formation rates of GRB host galaxies

By L. Christensen, J. Hjorth, J. G. A. Potsdam, U. Copenhagen, Iaa-Csic. 2004

237 citations recorded by the source corpus.

We study a magnitude-limited sample of 10 gamma-ray burst (GRB) host galaxies with known spectroscopic red- shifts (0.43 < z < 2.04). From an analysis of the spectral energy distributions (SEDs), based on published broad-band optical and near-infrared photometry, we derive photometric redshifts, galaxy types, ages of the dominant stellar populations, internal extinctions, and ultraviolet (UV) star-formation rates (SFRs) of the host galaxies. The photometric redshifts are quite accurate despite the heterogeneous nature of the sample: the rms errors are σ(z) = 0.21 and σ(∆z/(1 + zspec)) = 0.16 with no significant systematic offsets. All the host galaxies have SEDs similar to young starburst galaxies with moderate to low extinction. A comparison of specific SFRs with those of high-redshift galaxies in the Hubble Deep Fields shows that GRB hosts are most likely similar to the field galaxies with the largest specific SFRs. On the other hand, GRB hosts are not significantly younger than starburst field galaxies at similar redshifts, but are found to be younger than a sample of all types of field galaxies.

Subfields: Astronomy and Astrophysics

View Paper: https://www.semanticscholar.org/paper/3549447d68dd85f930cb81010b7529e79f0900f1

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In Astronomy and Astrophysics

1. Bing Zhang
2. E. Berger
3. B. Metzger
4. S. Smartt
5. A. Filippenko
6. Stan Woosley
7. N. Smith
8. Pawan Kumar

Citations in the corpus

• The SEDs and host galaxies of the dustiest GRB afterglows (2011, background): “…and consists mainly of young and vigorously star-forming galaxies with sub-L∗ luminosities and masses around 109 M (e.g., Bloom et al. 1998; Le Floc’h et al. 2003; Christensen et al. 2004; Fruchter et al. 2006; Michałowski et al. 2008; Savaglio et al. 2009, referenced as SGL09, hereafter).”
• A POPULATION OF MASSIVE, LUMINOUS GALAXIES HOSTING HEAVILY DUST-OBSCURED GAMMA-RAY BURSTS: IMPLICATIONS FOR THE USE OF GRBs AS TRACERS OF COSMIC STAR FORMATION (2013, background): “This tendency for GRBs to occur in young, high-sSFR galaxies has been noticed previously among nondark GRBs (Christensen et al. 2004; Mannucci et al. 2011; Kocevski & West 2011); the inclusion of our sample of dark GRBs extends the trend up to higher redshifts (and stellar masses), as shown in…”
• THE FIRST POSITIVE DETECTION OF MOLECULAR GAS IN A GRB HOST GALAXY (2009, background): “Nevertheless, these galaxies are actively forming stars (Christensen et al. 2004) and GRB sightlines should occasionally penetrate neighboring molecular clouds on the path to Earth.”
• GRB hosts through cosmic time - VLT/X-Shooter emission-line spectroscopy of 96 γ-ray-burst-selected galaxies at 0.1 (2015, background): “Seminal sample studies (e.g., Le Floc’h et al. 2003; Christensen et al. 2004; Tanvir et al. 2004; Levesque et al. 2010a) culminating in the compilation of GRB host properties of Savaglio et al. (2009) revealed a population of low-luminosity, low-mass, star-forming galaxies at z .”
• The Observer's Guide to the Gamma-Ray Burst-Supernova Connection (2016, background): “Over the years, evidence mounted that LGRBs appeared to prefer lowluminosity, low-mass, blue, star-forming galaxies, that have higher specific star-formation rates (SFRs) than the typical field galaxy [213, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228].”
• LOW-RESOLUTION SPECTROSCOPY OF GAMMA-RAY BURST OPTICAL AFTERGLOWS: BIASES IN THE SWIFT SAMPLE AND CHARACTERIZATION OF THE ABSORBERS (2009, background): “There is an ex lusive oin iden e of long-duration GRBs with a tively star-forming galaxies(e.g., Hogg & Fru hter 1999; Bloom et al. 2002; Fru hter et al. 2006), the majority of whi h showelevated spe i star-formation rates (Christensen et al. 2004).”
• Gamma-Ray Bursts in the Swift Era (2009, background): “These surveys established a standard picture for the GRB hosts as sub-L∗ galaxies (median L ∼ 0.1L∗) with exponential-disk light profiles (Conselice et al. 2005, Wainwright et al. 2007) and high specific star-formation rates (SSFR ∼ 1 Gyr−1) (Christensen et al. 2004).”
• DEMOGRAPHICS OF THE GALAXIES HOSTING SHORT-DURATION GAMMA-RAY BURSTS (2013, background): “These characteristics match more closely with the median parameters observed for long GRB host galaxies (Christensen et al. 2004; Wainwright et al. 2007b; Leibler & Berger 2010).”
• The Supernova Gamma-Ray Burst Connection (2006, background): “There is convincing spectroscopic evidence that typical GRB host galaxies are forming stars actively, perhaps at a higher rate per unit mass than field galaxies (Djorgovski et al., 2001; Christensen et al., 2004).”
• A new method for estimating the bolometric properties of Ibc supernovae (2013, unknown): “– 40 – (1) Galama et al. (1998), (2) Levesque et al. (2010), (3) Sahu et al. (2000), (4) Christensen et al. (2004), (5) Björnsson et al. (2001), (6) Hjorth et al. (2000), (7) Zeh et al. (2004), (8) Kann et al. (2006), (9) Küpcü Yoldaş et al. (2007), (10) Garnavich et al. (2003), (11) Bersier et…”
• THE OPTICALLY UNBIASED GAMMA-RAY BURST HOST (TOUGH) SURVEY. I. SURVEY DESIGN AND CATALOGS (2012, background): “Several previous studies of GRB hosts have found that the majority of GRB hosts are faint, blue galaxies (Fruchter et al. 1999; Le Floc’h et al. 2003; Christensen et al. 2004) with low stellar masses (Castro Cerón et al. 2006, 2010; Savaglio et al. 2009).”
• The physics of gamma-ray bursts & relativistic jets (2014, background): “The evidence for association of long-duration GRBs (those lasting for more than 2s) with core collapse SNa comes from two different kinds of observations: (i) GRBs are typically found to be in star forming regions of their host galaxies (e.g. Bloom et al., 2002b; Fruchter et al., 2006; Christensen e”