2021RNAAS...5..156G

Query : 2021RNAAS...5..156G

2021RNAAS...5..156G - Research Notes of the AAS, 5, 156 (2021/July-0)

OW Hydrae: A Newly Discovered SB2 Algol in a Triple Star, from DAO Spectrograms.

GANDET T.L.

Abstract (from CDS):

Evidence is presented that the detached Algol system OW Hya is a double-lined spectroscopic binary (SB2). The components appear to be closely similar to each other, which is contradicted by the failure so far to detect the secondary eclipse. A sizeable asymmetry in the Mg IIλ4481 Å line is discussed. The interstellar line of Ca II-K line is present, and the primary star appears to be a late-B giant. OW Hya is the short-period pair of the interferometric triple star, CHR 175, which appears to be hierarchical.

Journal keyword(s): Spectroscopic binary stars - Binary stars - Detached binary stars - Eclipsing binary stars - Trinary stars - Interferometric binary stars

Simbad objects: 1

Full paper

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Number of rows : 1

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	* 37 Hya	**	09 39 47.4107522952	-10 34 12.977690196		6.29	6.32			A0V	46	0

Query : 2021RNAAS...5..156G

Basic data :

* 37 Hya -- Double or Multiple Star

* (*,BD,...), ** (**,WDS), V* (V*,AAVSO), UV (TD1), NIR (2MASS)

09 39 47.4107522952 -10 34 12.977690196 (Optical) [ 0.3508 0.5859 90 ] A 2020yCat.1350....0G

09 37 20.8731949631 -10 20 35.773484761 [ 0.3508 0.5859 90 ]

245.3732552689683 +30.1831056776299 [ 0.3508 0.5859 90 ]

-20.146 3.837 [0.380 0.675 90] A 2020yCat.1350....0G

V(km/s) 14.00 [3.7] / z(~) 0.000047 [0.000012] / cz 14.00 [3.70] C 2007AN....328..889K

2.9898 [0.3255] A 2020yCat.1350....0G

A0V C 1995ApJS...99..135A

0.0050 0.0 130 (Opt) D 2001AJ....122.3466M

B 6.29 [~] E ~

V 6.32 [~] E ~

G 6.343301 [0.003390] C 2020yCat.1350....0G

J 6.274 [0.023] C 2003yCat.2246....0C

H 6.355 [0.027] C 2003yCat.2246....0C

K 6.319 [0.020] C 2003yCat.2246....0C

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*` 37 Hya`**	`HIC 47427`	`TD1 14159`	`WEB 8902`
` CHR 175`**	`HIP 47427`	`TIC 47124392`	`YZC 11 3756`
`BD-09 2898`	`HR 3846`	`TYC 5465-751-1`	`YZ 0 4638`
`GC 13343`	`2MASS J09394741-1034127`	`UBV 9187`	`AAVSO 0934-10`
`GCRV 60805`	`N30 2310`	`UBV M 15624`	`Gaia DR3 5740410952894793088`
`GEN# +1.00083650`	`PPM 221831`	`uvby98 100083650`	`Gaia DR2 5740410952894793088`
`GSC 05465-00751`	`SAO 155377`	*`V OW Hya`**
`HD 83650`	`SKY# 18690`	`WDS J09398-1034AB`

References (46 between 1850 and 2026) (Total 46)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

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Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

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`BD-09 2898`	`GSC 05465-00751`	`HD 83650`	`HIC 47427`	`HIP 47427`
`HR 3846`	`2MASS J09394741-1034127`	`PPM 221831`	`SAO 155377`	`TD1 14159`
`TYC 5465-751-1`	`uvby98 100083650`	*`V OW Hya`**	`WDS J09398-1034AB`	`YZC 11 3756`
`Gaia DR3 5740410952894793088`	`Gaia DR2 5740410952894793088`

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