BVRI PHOTOMETRIC 2015 WD ANALYSIS OF THE SOUTHERN TOTALLY ECLIPSING, SOLAR-TYPE, SHALLOW-CONTACT W UMA BINARY, DD INDUS

被引：4

作者：

Samec, Ronald G. ^{[1
]}

Norris, Cody L. ^{[1
]}

Van Hamme, Walter ^{[2
]}

Faulkner, Danny R. ^{[3
]}

Hill, Robert L. ^{[4
]}

机构：

[1] Emmanuel Coll, Dept Nat Sci, Astron Grp, 181 Springs St, Franklin Springs, GA 30639 USA

[2] Florida Int Univ, Dept Phys, 11200 SW 8th St,CP 204, Miami, FL 33199 USA

[3] Johnson Observ, 1414 Bur Oak Court, Hebron, KY 41048 USA

[4] Bob Jones Univ, Dept Chem & Phys, Astron Program, 1700 Wade Hampton Blvd, Greenville, SC 29614 USA

来源：

ASTRONOMICAL JOURNAL | 2016年 / 152卷 / 06期

关键词：

binaries: close; binaries: eclipsing; stars: evolution; stars: individual (DD Indus); STAR; MODELS; NOVA;

D O I：

10.3847/0004-6256/152/6/219

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Observations and a 2015 Wilson-Devinney Program analysis are undertaken for the first precision observations of DD Indi. DD Indi is of solar-type (T-1 similar to 5750 K) and was determined to be a shallow-contact eclipsing binary. It was observed from 2013 June through September at Cerro Tololo InterAmerican Observatory in remote mode. The 24 inch Boller and Chivens reflector, now under management by The Southeastern Association for Resarch in Astronomomy (SARA) was used. Five new eclipse timings were obtained, for three primary and two secondary eclipses. Seven more eclipse timings were calculated from All Sky Automated Survey data. A possibly increasing period was found from all available eclipse timings with a 5 +/- 2 x 10(-11) x E-2 quadratic term. A BVRcIc simultaneous synthetic light-curve analysis reveals that the system has a mass ratio of similar to 0.46, a similar to 140 K component temperature difference, and two weak cool spots. The Roche Lobe fill-out of this W-type binary is only similar to 11%,. and an inclination of similar to 86 degrees was determined. A. time of constant light of similar to 16 minutes is measured around phase zero. More detail is included in this report.

引用

页数：6

共 8 条

[1] New Photometric Investigation of the Solar-Type Shallow-Contact Binary HH Bootis
He, Jia-jia
Wang, Jing-jing
ADVANCES IN ASTRONOMY, 2019, 2019
[2] BVRI photometric and polarimetric studies of W UMa type eclipsing binary FO Hydra
Prasad, Vinod
Pandey, J. C.
Patel, Manoj K.
Srivastava, D. C.
NEW ASTRONOMY, 2013, 20 : 52 - 61
[3] V1005 Her: a solar-type shallow-contact binary in a triply fossil system
Zhu, L-Y
Wang, Z. H.
Tian, X. M.
Li, L. J.
Gao, X.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2019, 489 (02) : 2677 - 2684
[4] Photometric study and orbital period analysis of the W UMa type contact binary VZ Psc
Ma, S.
Li, K.
Li, Q. -C.
Gao, H. -Y.
NEW ASTRONOMY, 2018, 59 : 1 - 7
[5] BVRI Photometric Observations and Study of the Newly Discovered W UMa Type Eclipsing Binary of Multiple System 1SWASP J093010.78+533859.5
Haroon, A. A.
Essam, A.
Basurah, H.
ASTROPHYSICS, 2018, 61 (04) : 458 - 468
[6] BVRI Photometric Observations and Study of the Newly Discovered W UMa Type Eclipsing Binary of Multiple System 1SWASP J093010.78+533859.5
A. A. Haroon
A. Essam
H. Basurah
Astrophysics, 2018, 61 : 458 - 468
[7] AD Cancri: A shallow contact solar-type eclipsing binary and evidence for a dwarf third component and a 16 year magnetic cycle
Qian, S. -B.
Yuan, J. -Z.
Soonthornthum, B.
Zhu, L. -Y.
He, J. -J.
Yang, Y. -G.
ASTROPHYSICAL JOURNAL, 2007, 671 (01): : 811 - 820
[8] UBVRcIc ANALYSIS OF THE RECENTLY DISCOVERED TOTALLY ECLIPSING EXTREME MASS RATIO BINARY V1853 ORIONIS, AND A STATISTICAL LOOK AT 25 OTHER EXTREME MASS RATIO SOLAR-TYPE CONTACT BINARIES
Samec, R. G.
Labadorf, C. M.
Hawkins, N. C.
Faulkner, D. R.
Van Hamme, W.
ASTRONOMICAL JOURNAL, 2011, 142 (04):

← 1 →