Analyzing temporal variations of AGN emission line profiles in the context of (dusty) cloud structure formation in the broad line region

Home

All issues

Volume 621 (January 2019)

A&A, 621 (2019) A46

Full HTML

Free Access

Table 1.

Journal of observations for our IRTF SpeX spectra.

Date	MJD−50000	Exposure	Airmass	Continuum S/N^a			Mode	Slit size	FWHM Paβ NEL^b
		(s)		J	H	K			(km s⁻¹)
2002 Apr 23	2387	1800	1.10	189	303	406	SXD	0.8″ × 15″	700
2004 May 23	3148	720	1.13	32	45	121	SXD	0.8″ × 15″	560
2006 Jan 08	3743	1920	1.07	103	212	345	SXD	0.8″ × 15″	490
2006 Jun 12	3898	1200	1.22	109	202	269	SXD	0.8″ × 15″	420
2007 Jan 24	4124	960	1.45	15	54	113	SXD	0.8″ × 15″	420
2010 Feb 27	5254			182	226	363	SXD	0.3″ × 15″	400
2015 Jun 23	7076	2520	1.09	150	163	250	SXD	0.3″ × 15″	400

Notes.

^(a)

S/N in the continuum over ∼100 Å measured at the central wavelength of the J, H and K band.

^(b)

This NEL FWHM was fitted with a Gaussian profile to the individual spectra. Part of the FWHM variation between the epochs is due to cross-talk between the NEL FWHM fit, and the variable BEL profile superposed onto the fixed NEL profile. The mean of the measured FWHM of the 2004–2015 spectra is 450 km s⁻¹.

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.