Time-dependent excitation and ionization modelling of absorption-line variability due to GRB 080310

Home

All issues

Volume 549 (January 2013)

A&A, 549 (2013) A22

Full HTML

Highlight

Free Access

Table 4

GRB absorber distances, as of April 2012.

GRB	Instrument	z	Distance	Size	P^a	log N(H i)	[X/H]	X	Ref.
			(pc)	(pc)

020813	LRIS+UVES	1.25	50–100						1, 2
050730	UVES	3.97	124 ± 20^b		E	22.10 ± 0.10	−2.18 ± 0.11	S	3, 4
051111	HIRES	1.55	a few hundred		E				5, 6
060418	UVES	1.49	480 ± 56		E	>21.0	<−0.5	Zn	7, 4
080310	UVES	2.43	200–400	0–200	E+I	18.70 ± 0.10	−1.2 ± 0.2	Si	8, 9
080319B	UVES	0.94	560–1700		E				10, 4
080330	UVES	1.51			E				11, 4
081008	UVES+FORS	1.97	52 ± 6^c		E	21.11 ± 0.10	−0.87 ± 0.10	Si	12
090426	LRIS+FORS	2.61	80^d		I				13
090926	X-shooter	2.11	677 ± 42^e		E	21.60 ± 0.07	−1.85 ± 0.10	S	14, 4

Notes. Distances derived from a photo-excitation/photo-ionization model of the column density variability, based on high-resolution spectroscopy, highlighted in bold, are considered to be more reliable. The excitation distances have been corrected for according to Vreeswijk et al. (2011).

^(a)

Process modelled: photo-excitation (E) or photo-ionization (I).

^(b)

A former analysis of the Magellan Clay/MIKE echelle spectrum (Chen et al. 2005) suggested a cloud distance d < 100 pc (Prochaska et al. 2006).

^(c)

Component I (Component II lies at pc).

^(d)

We consider the 090426 Lyα variation detection to be marginal and conservatively list this distance estimate as a lower limit.

^(e)

Main component (the second lies at ~5 kpc).

References. (1) Dessauges-Zavadsky et al. (2006); (2) Savaglio & Fall (2004); (3) Ledoux et al. (2009); (4) Vreeswijk et al. (2011); (5) Penprase et al. (2006); (6) Prochaska et al. (2006); (7) Vreeswijk et al. (2007); (8) This work; (9) Paper I: De Cia et al. (2012); (10) D’Elia et al. (2009a); (11) D’Elia et al. (2009b); (12) D’Elia et al. (2011); (13) Thöne et al. (2011); (14) D’Elia et al. (2010).

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.