VizieR Online Data Catalog: Broad Hβ emission line in 102 Seyfert galaxies (Runco+, 2016)
Abstract
A sample of 102 local (0.02=<z=<0.1) type-1 Seyfert galaxies was selected from the SDSS data release six (DR6) (Adelman-McCarthy et al. 2008, Cat. II/282). SDSS spectra are obtained from a 2.5 m ground-based telescope with a 3" diameter circular optical fiber and an exposure time of 54 s. SDSS spectra cover a wavelength range of 3800-9200 Å with an instrumental resolution of 170 km/s. The 102 objects selected from SDSS were observed again between 2009 January and 2010 March with the Low Resolution Imaging Spectrometer (LRIS) at the Keck 10 m telescope using a 1"x2" wide rectangular longslit aligned with the major axis of the host galaxy (given by SDSS). For eight objects with significantly weaker or apparently absent broad Hβ emission in the Keck spectra, follow-up observations were conducted in 2013 January and March with the 3 m Shane telescope of Lick observatory using the Kast spectrograph and 60 minutes total exposure time per object. The slit was aligned either along the major axis or perpendicular to it. 1D spectra were extracted using a 4 pixel (~3") width centered on the peak flux to mimic the 3" diameter circular fiber of SDSS.
(2 data files).- Publication:
-
VizieR Online Data Catalog
- Pub Date:
- February 2018
- DOI:
- 10.26093/cds/vizier.18210033
- Bibcode:
- 2018yCat..18210033R
- Keywords:
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- Galaxies: Seyfert;
- Balmer lines;
- Redshifts;
- Spectroscopy;
- Galaxies: nearby