binaries : eclipsing;
binaries : spectroscopic;
blue stragglers;
stars : individual : S 1082;
open clusters and associations : individual : M67;
D O I:
10.1051/0004-6361:20010589
中图分类号:
P1 [天文学];
学科分类号:
0704 ;
摘要:
We present a photometric and spectroscopic study of the blue straggler S 1082 in the open cluster M67. Our observations confirm the previously reported 1.07 day eclipse light curve and the absence of large radial-velocity variations of the narrow-lined star. However, we find two more spectral components which do vary on the 1.07 day period. We conclude that the system is triple. We fit the light and radial-velocity curves and find that the total mass of the inner binary is more than twice the turnoff mass and that the outer companion to the binary is a blue straggler on its own account. We briefly discuss formation scenarios for this multiple system.
机构:
Northwestern Univ, Ctr Interdisciplinary Explorat & Res Astrophys CI, Evanston, IL 60208 USA
Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA
Univ Wisconsin Madison, Dept Astron, Madison, WI 53706 USANorthwestern Univ, Ctr Interdisciplinary Explorat & Res Astrophys CI, Evanston, IL 60208 USA
Geller, Aaron M.
Hurley, Jarrod R.
论文数: 0引用数: 0
h-index: 0
机构:
Swinburne Univ Technol, Ctr Astrophys & Supercomp, Hawthorn, Vic 3122, AustraliaNorthwestern Univ, Ctr Interdisciplinary Explorat & Res Astrophys CI, Evanston, IL 60208 USA
Hurley, Jarrod R.
Mathieu, Robert D.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Wisconsin Madison, Dept Astron, Madison, WI 53706 USANorthwestern Univ, Ctr Interdisciplinary Explorat & Res Astrophys CI, Evanston, IL 60208 USA
机构:
Northwestern Univ, Ctr Interdisciplinary Explorat & Res Astrophys, 2145 Sheridan Rd, Evanston, IL 60208 USA
Univ Wisconsin, Dept Astron, 475 North Charter St, Madison, WI 53706 USANorthwestern Univ, Ctr Interdisciplinary Explorat & Res Astrophys, 2145 Sheridan Rd, Evanston, IL 60208 USA
Leiner, Emily
Mathieu, Robert D.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Wisconsin, Dept Astron, 475 North Charter St, Madison, WI 53706 USANorthwestern Univ, Ctr Interdisciplinary Explorat & Res Astrophys, 2145 Sheridan Rd, Evanston, IL 60208 USA
Mathieu, Robert D.
Vanderburg, Andrew
论文数: 0引用数: 0
h-index: 0
机构:
Univ Texas Austin, Dept Astron, RLM 15308, Austin, TX 78712 USANorthwestern Univ, Ctr Interdisciplinary Explorat & Res Astrophys, 2145 Sheridan Rd, Evanston, IL 60208 USA
Vanderburg, Andrew
Gosnell, Natalie M.
论文数: 0引用数: 0
h-index: 0
机构:
Colorado Coll, Dept Phys, 14 E Cache La Poudre St, Colorado Springs, CO 80903 USANorthwestern Univ, Ctr Interdisciplinary Explorat & Res Astrophys, 2145 Sheridan Rd, Evanston, IL 60208 USA
Gosnell, Natalie M.
Smith, Jeffrey C.
论文数: 0引用数: 0
h-index: 0
机构:
SETI Inst, Mountain View, CA 94043 USA
NASA, Ames Res Ctr, Moffett Field, CA 94035 USANorthwestern Univ, Ctr Interdisciplinary Explorat & Res Astrophys, 2145 Sheridan Rd, Evanston, IL 60208 USA
机构:
Chinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R ChinaChinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
Li, Chunyan
Zhong, Jing
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R ChinaChinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
Zhong, Jing
Qin, Songmei
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R ChinaChinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
Qin, Songmei
Jiang, Dengkai
论文数: 0引用数: 0
h-index: 0
机构:
Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
Chinese Acad Sci, Yunnan Observ, 396 Yangfangwang, Kunming 650216, Peoples R China
Int Ctr Supernovae, Yunnan Key Lab, Kunming 650216, Peoples R ChinaChinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
Jiang, Dengkai
Shan, Xingmei
论文数: 0引用数: 0
h-index: 0
机构:
Shanghai Sci & Technol Museum, 2000 Century Ave, Shanghai 200127, Peoples R ChinaChinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
Shan, Xingmei
Chen, Li
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R ChinaChinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
机构:
Northwestern Univ, Ctr Interdisciplinary Explorat & Res Astrophys CI, Evanston, IL 60208 USA
Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA
Univ Wisconsin Madison, Dept Astron, Madison, WI 53706 USANorthwestern Univ, Ctr Interdisciplinary Explorat & Res Astrophys CI, Evanston, IL 60208 USA
Geller, Aaron M.
Hurley, Jarrod R.
论文数: 0引用数: 0
h-index: 0
机构:
Swinburne Univ Technol, Ctr Astrophys & Supercomp, Hawthorn, Vic 3122, AustraliaNorthwestern Univ, Ctr Interdisciplinary Explorat & Res Astrophys CI, Evanston, IL 60208 USA
Hurley, Jarrod R.
Mathieu, Robert D.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Wisconsin Madison, Dept Astron, Madison, WI 53706 USANorthwestern Univ, Ctr Interdisciplinary Explorat & Res Astrophys CI, Evanston, IL 60208 USA
机构:
Northwestern Univ, Ctr Interdisciplinary Explorat & Res Astrophys, 2145 Sheridan Rd, Evanston, IL 60208 USA
Univ Wisconsin, Dept Astron, 475 North Charter St, Madison, WI 53706 USANorthwestern Univ, Ctr Interdisciplinary Explorat & Res Astrophys, 2145 Sheridan Rd, Evanston, IL 60208 USA
Leiner, Emily
Mathieu, Robert D.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Wisconsin, Dept Astron, 475 North Charter St, Madison, WI 53706 USANorthwestern Univ, Ctr Interdisciplinary Explorat & Res Astrophys, 2145 Sheridan Rd, Evanston, IL 60208 USA
Mathieu, Robert D.
Vanderburg, Andrew
论文数: 0引用数: 0
h-index: 0
机构:
Univ Texas Austin, Dept Astron, RLM 15308, Austin, TX 78712 USANorthwestern Univ, Ctr Interdisciplinary Explorat & Res Astrophys, 2145 Sheridan Rd, Evanston, IL 60208 USA
Vanderburg, Andrew
Gosnell, Natalie M.
论文数: 0引用数: 0
h-index: 0
机构:
Colorado Coll, Dept Phys, 14 E Cache La Poudre St, Colorado Springs, CO 80903 USANorthwestern Univ, Ctr Interdisciplinary Explorat & Res Astrophys, 2145 Sheridan Rd, Evanston, IL 60208 USA
Gosnell, Natalie M.
Smith, Jeffrey C.
论文数: 0引用数: 0
h-index: 0
机构:
SETI Inst, Mountain View, CA 94043 USA
NASA, Ames Res Ctr, Moffett Field, CA 94035 USANorthwestern Univ, Ctr Interdisciplinary Explorat & Res Astrophys, 2145 Sheridan Rd, Evanston, IL 60208 USA
机构:
Chinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R ChinaChinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
Li, Chunyan
Zhong, Jing
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R ChinaChinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
Zhong, Jing
Qin, Songmei
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R ChinaChinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
Qin, Songmei
Jiang, Dengkai
论文数: 0引用数: 0
h-index: 0
机构:
Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
Chinese Acad Sci, Yunnan Observ, 396 Yangfangwang, Kunming 650216, Peoples R China
Int Ctr Supernovae, Yunnan Key Lab, Kunming 650216, Peoples R ChinaChinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
Jiang, Dengkai
Shan, Xingmei
论文数: 0引用数: 0
h-index: 0
机构:
Shanghai Sci & Technol Museum, 2000 Century Ave, Shanghai 200127, Peoples R ChinaChinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
Shan, Xingmei
Chen, Li
论文数: 0引用数: 0
h-index: 0
机构:
Chinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R ChinaChinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China