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相关论文: On the distribution of stellar masses in gamma-ray…

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Long-duration gamma-ray bursts (GRBs) provide a premier tool for studying high-redshift star-forming galaxies thanks to their extreme brightness and association with massive stars. Here we use GRBs to study the galaxy mass-metallicity…

宇宙学与河外天体物理 · 物理学 2011-02-08 Tanmoy Laskar , Edo Berger , Ranga-Ram Chary

Establishing the stellar masses (M*), and hence specific star-formation rates (sSFRs) of submillimetre galaxies (SMGs) is crucial for determining their role in the cosmic galaxy/star formation. However, there is as yet no consensus over the…

宇宙学与河外天体物理 · 物理学 2012-05-04 Michał J. Michałowski , James S. Dunlop , Michele Cirasuolo , Jens Hjorth , Christopher C. Hayward , Darach Watson

We present the first results of our investigation into the ISM environments of long-duration GRB (LGRB) host galaxies. We apply a new suite of stellar population synthesis and photoionization models to new, uniform, rest-frame optical…

星系天体物理 · 物理学 2009-12-14 Emily M. Levesque

Brightness distribution of Gamma-Ray Bursts (GRBs) is studied in detail under the assumption that GRB rate is related to cosmic star formation rate. The two populations of the long- and short-duration bursts in the 4B BATSE catalog are…

天体物理学 · 物理学 2009-10-30 Tomonori Totani

We present a new determination of the star-forming main sequence (MS), obtained through stacking 100k K-band-selected galaxies in the far-infrared (FIR) Herschel and James Clerk Maxwell Telescope (JCMT) imaging. By fitting the dust emission…

Highly dust-obscured starbursting galaxies (submillimeter galaxies and their ilk) represent the most extreme sites of star-formation in the distant universe and contribute significantly to overall cosmic star-formation beyond z>1.5. Some…

宇宙学与河外天体物理 · 物理学 2015-06-15 D. A. Perley , R. A. Perley

The James Webb Space Telescope (JWST) has revealed an unexpected excess of UV-bright galaxies at z>10, unaccounted for by extrapolations from pre-JWST observations and theoretical models. Understanding the physical properties and star…

Observational follow-up of well localized short gamma-ray bursts (SGRBs) has left $20-30\%$ of the population without a coincident host galaxy association to deep optical and NIR limits ($\gtrsim 26$ mag). These SGRBs have been classified…

高能天体物理现象 · 物理学 2020-06-03 Brendan O'Connor , Paz Beniamini , Chryssa Kouveliotou

We investigate the mass distribution of long gamma-ray burst (GRB) host galaxies and the redshift distribution of long GRBs by considering that long GRBs occur in low-metallicity environments. We calculate the upper limit on the stellar…

高能天体物理现象 · 物理学 2015-06-19 F. Y. Wang , Z. G. Dai

We present a comprehensive study of the morphological properties of 42 gamma-ray burst (GRB) host galaxies imaged with the Hubble Space Telescope in the optical band. The purpose of this study is to understand the relation of GRBs to their…

天体物理学 · 物理学 2009-09-29 C. Wainwright , E. Berger , B. E. Penprase

We use numerical simulations of large scale structure formation to explore the cosmological properties of Gamma-Ray Burst (GRB) host galaxies. Among the different sub-populations found in the simulations, we identify the host galaxies as…

天体物理学 · 物理学 2009-11-10 Stephanie Courty , Gunnlaugur Bjornsson , Einar H. Gudmundsson

The observed redshifts and magnitudes of the host galaxies of gamma-ray bursts (GRBs) are compared with the predictions of three basic GRB models, in which the comoving rate density of GRBs is (1) proportional to the cosmic star formation…

天体物理学 · 物理学 2009-10-30 David W. Hogg , Andrew S. Fruchter

Measuring the star formation rate (SFR) at high redshift is crucial for understanding cosmic reionization and galaxy formation. Two common complementary approaches are Lyman-Break-Galaxy (LBG) surveys for large samples and Gamma-Ray-Burst…

宇宙学与河外天体物理 · 物理学 2015-06-04 Michele Trenti , Rosalba Perna , Emily M. Levesque , J. Michael Shull , John T. Stocke

We investigate the contribution of host galaxies to the overall Dispersion Measures (DMs) for Fast Radio Bursts (FRBs) using the Feedback in Realistic Environments (FIRE-2) cosmological zoom-in simulation suite. We calculate DMs from every…

星系天体物理 · 物理学 2024-08-19 Matthew E. Orr , Blakesley Burkhart , Wenbin Lu , Sam B. Ponnada , Cameron B. Hummels

The data on the location of gamma-ray bursts (GRBs) relative to their host galaxies are used to derive the distribution of surface density of GRBs along the galaxy radius. It is shown that the gradient of GRB surface density changes…

天体物理学 · 物理学 2007-05-23 D. Yu. Tsvetkov , S. I. Blinnikov , N. N. Pavlyuk

Dust in the host galaxies of gamma-ray bursts (GRBs) dims and reddens their afterglow spectra. Knowledge of the nature of this dust is crucial for correcting for extinction, providing clues to the nature of GRB progenitors, and probing the…

天体物理学 · 物理学 2009-11-11 Shilun Chen , Aigen Li , Daming Wei

We report the results of J-band infrared spectroscopy of a sample of 13 z=1 field galaxies drawn from the Canada-France Redshift Survey, targeting galaxies whose redshifts place the rest frame H-alpha line emission from HII regions in…

天体物理学 · 物理学 2009-10-30 Karl Glazebrook , Chris Blake , Frossie Economou , Simon Lilly , Matthew Colless

We present millimetre (mm) and submillimetre (submm) photometry of a sample of host galaxies of Gamma Ray Bursts (GRBs), obtained using the MAMBO2 and SCUBA bolometer arrays respectively. These observations were obtained as part of an…

We present K-band imaging observations of ten Gamma-Ray Burst (GRB) host galaxies. We compare their observed and absolute K magnitudes as well as their R-K colours with those of other distant sources detected in various optical,…

Gamma-ray bursts (GRBs) offer a route to characterizing star-forming galaxies and quantifying high-$z$ star formation that is distinct from the approach of traditional galaxy surveys: GRB selection is independent of dust and probes even the…