scholarly journals The Behavior of the Paschen and Calcium Triplet Lines in Cepheid Variables II: The 16-day Variable X Cygni

2019 ◽  
Vol 131 (1003) ◽  
pp. 094203
Author(s):  
G. Wallerstein ◽  
R. I. Anderson ◽  
E. M. Farrell ◽  
E. Guinan ◽  
M. Albright ◽  
...  
Keyword(s):  
Cepheid Variables

Galactic Clusters with Associated Cepheid Variables. VI. Anonymous van den Bergh (C0634+031) and CV Monocerotis

1998 ◽  
Vol 115 (5) ◽  
pp. 1958-1971 ◽  
Author(s):  
David G. Turner ◽  
Mario H. Pedreros ◽  
Alistair R. Walker
Keyword(s):  
Galactic Clusters ◽  
Cepheid Variables

scholarly journals IRAS observations of classical cepheids

1987 ◽  
Vol 122 ◽  
pp. 227-228
Author(s):  
C. J. Butler ◽  
H. P. Deasy ◽  
P. A. Wayman
Keyword(s):  
Mass Loss ◽  
Classical Cepheids ◽  
Cepheid Variables ◽  
Loss Rates

IRAS observations of sources identified with cepheid variables are used to give estimates of observed mass-loss rates for those stars.

Sighting Cepheid Variables

1992 ◽  
Vol 267 (5) ◽  
pp. 128-130
Author(s):  
George A. Carlson
Keyword(s):  
Cepheid Variables

scholarly journals THE ARAUCARIA PROJECT: THE DISTANCE TO THE SCULPTOR GROUP GALAXY NGC 247 FROM CEPHEID VARIABLES DISCOVERED IN A WIDE-FIELD IMAGING SURVEY

2008 ◽  
Vol 136 (5) ◽  
pp. 1770-1777 ◽  
Author(s):  
Alejandro García-Varela ◽  
Grzegorz Pietrzyński ◽  
Wolfgang Gieren ◽  
Andrzej Udalski ◽  
Igor Soszyński ◽  
...  
Keyword(s):  
Wide Field ◽  
Cepheid Variables ◽  
Field Imaging ◽  
Wide Field Imaging ◽  
Group Galaxy

scholarly journals Recent improvements to the Cepheid distance scale

1993 ◽  
Vol 139 ◽  
pp. 61-71
Author(s):  
Wendy L. Freedman ◽  
Barry F. Madore
Keyword(s):  
Near Infrared ◽  
Hubble Space Telescope ◽  
Systematic Difference ◽  
Distance Scale ◽  
Nearby Galaxy ◽  
Rr Lyrae ◽  
Cepheid Variables ◽  
Level Of Significance ◽  
Extragalactic Distance Scale ◽  
Better Than

AbstractIn the course of the last decade significant advances have been made in the observations of Cepheid variables and in their successful application to the extragalactic distance scale. Much of this progress has come about as a result of new CCD and near-infrared photometry. These recent improvements are discussed, and a comparison is given of Population I Cepheids and Population II distances. The correspondence is good, with the zero points agreeing at a level of better than 15% in distance. At this same level of significance, a systematic difference between these distances scales may exist, in the sense that the RR Lyrae distances appear to be smaller than the Cepheid distances (if it is assumed, as has generally been done for extragalactic studies of RR Lyraes, that Mv(RR) = 0.77 mag, independent of [Fe/H]). However, several recently-published calibrations of Mv(RR) significantly reduce this discrepancy. Finally, new Cepheid data for the nearby galaxy M81 are presented based on recent Hubble Space Telescope observations.

Coravel Radial-Velocity Curves for Cepheids in the Large Magellanic Cloud

1984 ◽  
Vol 88 ◽  
pp. 375-380
Author(s):  
M. Imbert ◽  
J. Andersen ◽  
A. Ardeberg ◽  
C. Bardin ◽  
W. Benz ◽  
...  
Keyword(s):  
Comparative Study ◽  
Radial Velocity ◽  
Stellar Evolution ◽  
Large Magellanic Cloud ◽  
Magellanic Clouds ◽  
Independent Determination ◽  
Fundamental Information ◽  
The Galaxy ◽  
Cepheid Variables

Radii and luminosities for Cepheid variables provide fundamental information on stellar evolution. Such data, obtained by the Baade-Wesselink method, are available and have been used for a number of galactic Cepheids. It is of particular interest to obtain corresponding data for Cepheids in the Magellanic Clouds. Firstly, this allows a comparative study of stellar evolution between the Galaxy and the Magellanic Clouds. Secondly, it provides data for an independent determination of the distance to the Magellanic Clouds.Radial-velocity observations have been made for a total of around 20 Cepheid variables in both the LMC and the SMC. All measurements were made with the photoelectric scanner CORAVEL attached to the Cassegrain focus of the Danish 1.54-m telescope at European Southern Observatory, La Silla, Chile. Observations were made from January 1981 through October 1983. The accuracy of individual radial-velocity observations is of the order of 1 km s−1. The B magnitudes of the six Cepheids presented range from 13.0 to 15.5.

scholarly journals LARGE MAGELLANIC CLOUD NEAR-INFRARED SYNOPTIC SURVEY. I. CEPHEID VARIABLES AND THE CALIBRATION OF THE LEAVITT LAW

2015 ◽  
Vol 149 (4) ◽  
pp. 117 ◽  
Author(s):  
Lucas M. Macri ◽  
Chow-Choong Ngeow ◽  
Shashi M. Kanbur ◽  
Salma Mahzooni ◽  
Michael T. Smitka
Keyword(s):  
Near Infrared ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Cepheid Variables
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