Photometric Studies of Stars in the Vicinity of Cyg OB7
Results of BVRI photometric studies of 131 stars in the stellar association Cyg OB7 are presented. Observational data were obtained with the 2.6-m telescope at the Byurakan Observatory during 2000, 2002, 2004, and 2011 using the ByuFOSC-2 and SCORPIO spectral cameras. Observations made in 2007 on th...
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| Veröffentlicht in: | Astrophysics 2017-12, Vol.60 (4), p.520-531 |
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| creator | Melikian, N. D. Gomez, J. |
| description | Results of BVRI photometric studies of 131 stars in the stellar association Cyg OB7 are presented. Observational data were obtained with the 2.6-m telescope at the Byurakan Observatory during 2000, 2002, 2004, and 2011 using the ByuFOSC-2 and SCORPIO spectral cameras. Observations made in 2007 on the 182-cm telescope (Asiago, Italy) at the Padova Astronomical Observatory with the AFOSC (Asiago Faint Object Spectrograph and Camera) detector system are also used. Variations with amplitudes ranging from 0
m
.2 to 2
m
.16 are detected in 42 of the stars. Variability is observed for the first time in 31 of the 42 stars. The brightness of 32 of the stars was essentially unchanged during the time of our measurements. All of the 42 variables lie very close to the T Tau type stars on a two-color diagram. |
| doi_str_mv | 10.1007/s10511-017-9503-8 |
| format | Article |
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m
.2 to 2
m
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m
.2 to 2
m
.16 are detected in 42 of the stars. Variability is observed for the first time in 31 of the 42 stars. The brightness of 32 of the stars was essentially unchanged during the time of our measurements. All of the 42 variables lie very close to the T Tau type stars on a two-color diagram.</description><subject>Astronomy</subject><subject>Astrophysics</subject><subject>Astrophysics and Astroparticles</subject><subject>Astrophysics and Cosmology</subject><subject>Cameras</subject><subject>Celestial bodies</subject><subject>Observations</subject><subject>Observations and Techniques</subject><subject>Observatories</subject><subject>Photometry</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Space Exploration and Astronautics</subject><subject>Space Sciences (including Extraterrestrial Physics</subject><subject>Star brightness</subject><subject>Stars</subject><subject>Stellar evolution</subject><subject>Variable stars</subject><issn>0571-7256</issn><issn>1573-8191</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp1kV1LwzAUhoMoOKc_wLuCV1505rRL0lzO4cdAmDj1NmRp0mWs7UxScP_ejAo6UHKRw8nzJJy8CF0CHgHG7MYDJgApBpZygvO0OEIDICwWwOEYDTBhkLKM0FN05v0aY8wppwPEnldtaGsdnFXJInSl1T5pTSyl84ltkrDSybtVtrFhtz-Y7qpkfsvO0YmRG68vvvcheru_e50-pk_zh9l08pSqMbCQ5tKUUuYEZ5nBsiCZpKWCLDeGlZqpwkBJx8osqeHjnErDKAeSa8ZKsoyOyofoqr9369qPTvsg1m3nmvikAE4Z56Qg9Ieq5EYL25g2OKlq65WYkAwzyOMnRWr0BxVXqWur2kYbG_sHwvWBEJmgP0MlO-_FbPFyyELPKtd677QRW2dr6XYCsNhHJPqIRIxI7CMSRXSy3vGRbSrtfg33r_QFaVGPOA</recordid><startdate>20171201</startdate><enddate>20171201</enddate><creator>Melikian, N. 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D. ; Gomez, J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c417t-3afdaa35022f0a852a6dc123ff7de7c8f1d64cfb6f9436af769153e77d5b022c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Astronomy</topic><topic>Astrophysics</topic><topic>Astrophysics and Astroparticles</topic><topic>Astrophysics and Cosmology</topic><topic>Cameras</topic><topic>Celestial bodies</topic><topic>Observations</topic><topic>Observations and Techniques</topic><topic>Observatories</topic><topic>Photometry</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Space Exploration and Astronautics</topic><topic>Space Sciences (including Extraterrestrial Physics</topic><topic>Star brightness</topic><topic>Stars</topic><topic>Stellar evolution</topic><topic>Variable stars</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Melikian, N. 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m
.2 to 2
m
.16 are detected in 42 of the stars. Variability is observed for the first time in 31 of the 42 stars. The brightness of 32 of the stars was essentially unchanged during the time of our measurements. All of the 42 variables lie very close to the T Tau type stars on a two-color diagram.</abstract><cop>New York</cop><pub>Springer US</pub><doi>10.1007/s10511-017-9503-8</doi><tpages>12</tpages></addata></record> |
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| subjects | Astronomy Astrophysics Astrophysics and Astroparticles Astrophysics and Cosmology Cameras Celestial bodies Observations Observations and Techniques Observatories Photometry Physics Physics and Astronomy Space Exploration and Astronautics Space Sciences (including Extraterrestrial Physics Star brightness Stars Stellar evolution Variable stars |
| title | Photometric Studies of Stars in the Vicinity of Cyg OB7 |
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