UVES/VLT high resolution spectroscopy of GRB 050730 afterglow: probing the features of the GRB environment

  title={UVES/VLT high resolution spectroscopy of GRB 050730 afterglow: probing the features of the GRB environment},
  author={V. D’Elia and Fabrizio Fiore and Evert J. A. Meurs and Guido L. Chincarini and A. Melandri and Laura Norci and Leonardo J. Pellizza and Rosalba Perna and Silvia Piranomonte and Luca Sbordone and Luigi Stella and Gianpiero Tagliaferri and Susanna D. Vergani and Pamela Ward and Lorella Angelini and Lucio Angelo Antonelli and David N. Burrows and Sergio Campana and M. Capalbi and Patrizia A. Caraveo and Andrea Cimatti and Enrico Costa and G Cusumano and Paolo D’Avanzo and Massimo Della Valle and Ph. Filliatre and A. Fontana F. Frontera and Dino Fugazza and Neil Gehrels and Teresa Giannini and Paolo Giommi and Paolo Goldoni and Dafne Guetta and Gian Luca Israel and Davide Lazzati and Daniele B. Malesani and Gianni Marconi and Keith O. Mason and Sandro Mereghetti and Emilio Molinari and Alberto Moretti and J A Nousek and Matteo Perri and Luigi Piro and Giulia Stratta and Vincenzo Testa and Mario Vietri},
  journal={Astronomy and Astrophysics},
Aims. The aim of this paper is to study the Gamma Ray Burst (GRB) environment through the analysis of the optical absorption features due to the gas surrounding the GRB. Methods. To this purpose we analyze high resolution spectroscopic observations ($R=20\,000$–45 000, corresponding to 14 km s -1 at 4200 A and 6.6 km s -1 at 9000 A) of the optical afterglow of GRB050730, obtained with UVES@VLT ~4 h after the GRB trigger. Results. The spectrum shows that the ISM of the GRB host galaxy at $z = 3… 
44 Citations
UVES/VLT high resolution absorption spectroscopy of the GRB 080330 afterglow: a study of the GRB host galaxy and intervening absorbers
Aims. We study the Gamma Ray Burst (GRB) environment and intervening absorbers by analyzing the optical absorption features produced by gas surrounding the GRB or along its line of sight. Methods. We
Very Large Telescope/Ultraviolet and Visual Echelle Spectrograph and FORS2 spectroscopy of the GRB 081008 afterglow
We aim at studying the gamma-ray burst (GRB), GRB 081008, environment by analysing the spectra of its optical afterglow. Ultraviolet and Visual Echelle Spectrograph/Very Large Telescope (UVES/VLT)
The Prompt, High-Resolution Spectroscopic View of the
GRB080319B reached fifth optical magnitude during the burst prompt emission. Thanks to the Very Large Telescope (VLT)/Ultraviolet and Visual Echelle Spectrograph (UVES) rapid response mode, we
Non variability of intervening absorbers observed in the UVES spectra of the "naked-eye" GRB080319
The aim of this paper is to investigate the properties of the intervening absorbers lying along the line of sight of GRB080319B through the analysis of its optical absorption features. For this
The mysterious optical afterglow spectrum of GRB 140506A at z = 0.889
Context. Gamma-ray burst (GRB) afterglows probe sightlines to star-forming regions in distant star-forming galaxies. Here we present a study of the peculiar afterglow spectrum of the z = 0.889Swift
The host of GRB 060206: kinematics of a distant galaxy
Context. GRB afterglow spectra are sensitive probes of interstellar matter along the line-of-sight in their host galaxies, as well as in intervening galaxies. The rapid fading of GRBs makes it very
Physical conditions in high-redshift GRB-DLA absorbers observed with VLT/UVES: implications for molecular hydrogen searches
Aims. We aim to understand the nature of the absorbing neutral gas in the galaxies hosting high-redshift long-duration gamma-ray bursts (GRBs) and to determine their physical conditions. Methods. A
ISM Studies of GRB 030329 with High-Resolution Spectroscopy
We present early Very Large Telescope UV-Visual Echelle Spectrograph (VLT UVES) high-resolution spectra of the afterglow of GRB 030329 at redshift z = 0.16867 ± 0.00001. In contrast to other spectra
High-Ion Absorption in Seven GRB Host Galaxies at z=2-4: Evidence for both Circumburst Plasma and
Aims. We use VLT/UVES high-resolution optical spectroscopy of seven GRB afterglows (at z GRB  between 2.20 and 3.97) to investigate circumburst and interstellar plasma in the host galaxies of the
GRB 071003: Broadband follow-up observations of a very bright gamma-ray burst in a galactic halo
The optical afterglow of long-duration GRB 071003 is among the brightest yet to be detected from any GRB, with R ≈ 12 mag in KAIT observations starting 42 s after the GRB trigger, including filtered


Spectroscopy of GRB 051111 at z = 1.54948: Kinematics and Elemental Abundances of the GRB Environment and Host Galaxy
We present a high-resolution, high S/N optical spectrum of the afterglow of GRB 051111 obtained with the HIRES spectrograph on the Keck I 10 m telescope. The spectrum exhibits three redshifted
A Flash in the Dark: UVES Very Large Telescope High-Resolution Spectroscopy of Gamma-Ray Burst Afterglows*
We present the first high-resolution (R ¼ 20;000 45;000, corresponding to 14 km s � 1 at 4200 8 to 6.6 km s � 1 at 9000 8) observations of the optical afterglow of gamma-ray bursts. GRB 020813 and
Time-dependent Optical Spectroscopy of GRB 010222: Clues to the Gamma-Ray Burst Environment*
We present sequential optical spectra of the afterglow of GRB 010222 obtained 1 day apart using the Low-Resolution Imaging Spectrometer (LRIS) and the Echellette Spectrograph and Imager (ESI) on the
Gas and dust properties in the afterglow spectra of GRB 050730
The host of the WHT ISIS optical spectroscopy of the afterglow of gamma-ray burst GRB is found to be a low metallicity galaxy, with low dust content, whilst the H I absorption causing the DLA is most likely located further out.
Echelle Spectroscopy of a Gamma-Ray Burst Afterglow at z = 3.969: A New Probe of the Interstellar and Intergalactic Media in the Young Universe
We present an echelle spectrum of the Swift GRB 050730, obtained 4 hr after the burst using the MIKE spectrograph on the Magellan Clay telescope when the afterglow was at R = 17.7. The spectrum
The host of GRB 030323 at z=3.372: A very high column density DLA system with a low metallicity
We present photometry and spectroscopy of the afterglow of GRB 030323. VLT spectra of the afterglow show damped Lyα (DLA) absorption and low- and high-ionization lines at a redshift z = 3.3718 ±
Dissecting the circumstellar environment of γ-ray burst progenitors
We investigate properties of the interstellar medium (ISM) in galaxies hosting long-duration γ-ray bursts (GRBs) from an analysis of atomic species (Mg0, Fe0) and excited fine-structure levels of
Identifying the Environment and Redshift of Gamma-Ray Burst Afterglows from the Time Dependence of Their Absorption Spectra
The discovery of gamma-ray burst (GRB) afterglows revealed a new class of variable sources at optical and radio wavelengths. At present, the environment and precise redshift of the detected
A near-solar metallicity damped Lyman-alpha system toward the BAL quasar Tol 1037-2703
We report the detection of a Broad Absorption Line (BAL) outflow in the spectrum of the zem (Mg ii) = 2.201 QSO Tol 1037 2703 with three main BALs at 36 000, 25 300 and 22 300 km s 1 outflow
The Gemini Deep Deep Survey. II. Metals in Star-forming Galaxies at Redshift 1.3 < z < 2*
The goal of the Gemini Deep Deep Survey (GDDS) is to study an unbiased sample of K 1.3. The selected objects have colors typical of irregular and Sbc galaxies. Strong [O II] emission indicates high