VizieR Online Data Catalog: Variability in proto-PNe. II. (Hrivnak+, 2013)
Abstract
New differential photometric observations were carried out at the Valparaiso University Observatory (VUO) during the four seasons from 2008-2009 to 2011-2012. These complement the earlier observations carried out at the VUO from 1994 through 2007 (Paper I: Hrivnak+, 2010, Cat. J/ApJ/709/1042).
Arkhipova et al. (1993AstL...19..169A, 2000, J/PAZh/26/705) have published photometric studies of IRAS 22272+5435 from 1991 to 1999 and made their UBV data available publicly, which consist of 89 observations in each filter. Arkhipova et al. (2003AstL...29..480A, 2011, J/PAZh/37/691) have published photometric studies of IRAS 22223+4327 from 1999 to 2002, consisting of 56 observations in each of the UBV filters, and from 2003 to 2010, consisting of 134 observations in each filter. The radial velocity observations for this program were initially made at the Dominion Astrophysical Observatory (DAO) with the 1.2m telescope used at the Coude focus. Observations were made in two observing intervals: 1991 to 1995 with the radial velocity spectrometer (RVS, from 4000 to 4600Å), and 2007 to 2011 from high-resolution CCD spectra in the wavelength interval from 4350 to 4500Å. Radial velocity observations of IRAS 22272+5435 were initiated in 2005 using the CORAVEL spectrometer of Vilnius University. Additional observations of IRAS 22223+4327 were initiated in 2008 with the CORAVEL spectrometer mounted on the 1.65m telescope at the Moletai Observatory (Lithuania) over the spectral interval 3850-6400Å with a with a ~0.6-0.7km/s precision. Additional radial velocity observations for both objects were also made from 2009 to 2011 with the fiber-fed echelle spectrograph Hermes on the 1.2m Flemish Mercator telescope at La Palma in 3900-9000Å with a spectral resolution of R~85000. (5 data files).- Publication:
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VizieR Online Data Catalog
- Pub Date:
- November 2014
- DOI:
- 10.26093/cds/vizier.17660116
- Bibcode:
- 2014yCat..17660116H
- Keywords:
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- Stars: giant;
- Stars: carbon;
- Planetary nebulae;
- Photometry: VRI;
- Radial velocities