Resolving the asymmetric inner wind region of the yellow hypergiant IRC +10420 with VLTI/AMBER in low and high spectral resolution mode

Home

All issues

Volume 507 / No 1 (November III 2009)

A&A, 507 1 (2009) 301-316

Full HTML

Free Access

Table 1:

Summary of the AMBER low-spectral resolution observations of IRC+10420 and the calibrator star HD 190327.
${\rm date}$	${\rm UTC}$	${\rm AT}$	$B_{\rm p}$	PA	seeing
		${\rm configuration}$	[ ${\rm m}$ ]	$[\hbox{$^\circ$ }]$	$[\hbox{$^{\prime\prime}$ }]$
IRC + 10420
2007-05-17	08:11:53	A0-D0-H0	31-93	75	1.0
2007-05-17	09:18:51	A0-D0-H0	32-96	72	1.4
2007-06-18	08:09:22	E0-G0-H0	15-48^a	69	0.7
2008-05-21	08:12:14	A0-D0-H0	31-94	74	0.8
${\rm HD~190327}$
2007-05-17	08:48:23	A0-D0-H0	31-93	74	1.2
2007-06-18	08:39:13	E0-G0-H0	16-47	70	0.6
2008-05-21	08:48:41	A0-D0-H0	32-95	74	0.7

^a Due to technical problems during the observations, visibilities could only be obtained for the intermediate baseline ( $B_{\rm p}=31$ m).

UTC is the time stamp (Universal Time) corresponding to the start of fringe tracking, $B_{\rm p}$ is the projected baseline, and PA denotes the position angle of the observation. The seeing value given in the last column corresponds to the DIMM seeing at the time of the corresponding observation. Each measurement consists of 5000 frames with an exposure time of 50 ms. The calibrator HD 190327 has spectral type K0III, $K=3.2^{\rm m}$ (Cutri et al. 2003), and a uniform-disk diameter $d=1.10 \pm 0.01$ mas (Richichi et al. 2005).

Source LaTeX | All tables | In the text

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.