1997A&AS..123..209D

Query : 1997A&AS..123..209D

1997A&AS..123..209D - Astron. Astrophys., Suppl. Ser., 123, 209-218 (1997/June-1)

A new radial velocity curve for the RS CVn star σ Gem. Constraints on its physical parameters.

DUEMMLER R., ILYIN I.V. and TUOMINEN I.

Abstract (from CDS):

26 high quality radial velocity measurements of the RS CVn star σ Gem taken in 1993, 1994, and 1995 are used in combination with older measurements to fit a new radial velocity curve. Essentially, the orbital parameters given by Bopp & Dempsey (1989PASP..101..516B) are confirmed. However, the orbit turns out to be circular. σ Gem is known as a single-lined binary, and also in the new spectra no trace of the secondary is found. However, combining the orbital with rotational parameters, constraints on the fundamental parameters can be found: the inclination, the radius and the two masses. The inclination is high; the mass of the primary seems to be normal for a K1 giant, its radius, however, seems to be too small.

Abstract Copyright: ∼

Journal keyword(s): stars: spectroscopic - stars: fundamental parameters - binaries: stars individual: σ Gem

VizieR on-line data: <Available at CDS (J/A+AS/123/209): table1>

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	* sig Gem	RS*	07 43 18.7276907303	+28 53 00.631838445	6.38	5.41	4.29	3.37	2.79	K1IIIe	499	0

Query : 1997A&AS..123..209D

Basic data :

* sig Gem -- RS CVn Variable

RS* (), * (*,AG,...), X (AT,2E,...), SB* (CABS,CCABS,...), PM* (2018yCat,LSPM,...), UV (2EUVE,EUVE,...), ** (CCDM,IDS,...), IR (IRAS,IRC,...), V* (V*), Rad (FIRST), NIR (2MASS), ev (2011ApJ)

07 43 18.7276907303 +28 53 00.631838445 (Optical) [ 0.3021 0.3242 90 ] A 2020yCat.1350....0G

07 40 11.3856921626 +29 00 22.500876963 [ 0.3021 0.3242 90 ]

191.1894312768957 +23.2744815258725 [ 0.3021 0.3242 90 ]

61.692 -229.213 [0.270 0.252 90] A 2020yCat.1350....0G

V(km/s) 44.15 [0.09] / z(~) 0.000147 [0.000000] / cz 44.15 [0.09] A 2004MNRAS.349.1069K

27.1210 [0.3066] A 2020yCat.1350....0G

K1IIIe C 1989ApJS...71..245K

0.0752 0.0678 59 (Rad) D 2012yCat.8090....0B

U 6.38 [~] C 2002yCat.2237....0D

B 5.41 [~] C 2002yCat.2237....0D

V 4.29 [~] C 2002yCat.2237....0D

R 3.37 [~] C 2002yCat.2237....0D

G 3.968050 [0.005990] C 2022yCat.1355....0G

I 2.79 [~] C 2002yCat.2237....0D

J 2.35 [~] C 2002yCat.2237....0D

H 1.799 [0.192] D 2003yCat.2246....0C

K 1.65 [~] C 2002yCat.2237....0D

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*` sig Gem`**	`FIRST J074318.6+285302`	`PLX 1821`	`TIC 95286503`
*` 75 Gem`**	`GC 10373`	`PPM 97883`	`TYC 1924-2022-1`
`AG+29 890`	`GCRV 5136`	`RAFGL 1174`	`UBV 7398`
`ASCC 674632`	`GEN# +1.00062044`	`2RE J074317+285304`	`UBV M 13527`
`AT 0737+270`	`HD 62044`	`2RE J0743+285`	`USNO-B1.0 1188-00152360`
`BD+29 1590`	`HIC 37629`	`RE J0743+285`	`uvby98 100062044`
`CABS 73`	`HIP 37629`	`RE J074317+285303`	*`V sig Gem`**
`CCABS 60`	`HR 2973`	`ROT 1245`	`WDS J07433+2853A`
`CCDM J07433+2854A`	`IDS 07371+2907 A`	`RX J0743.3+2853`	`WEB 7440`
`CMC 203994`	`IRAS 07401+2900`	`1RXS J074318.7+285306`	`YPAC 147`
`CSI+29 1590 1`	`IRC +30191`	`SAO 79638`	`YZ 29 4132`
`2E 1861`	`JP11 1586`	`SBC7 319`	`Gaia DR2 878467085734742400`
`2E 0740.2+2900`	`LSPM J0743+2853`	`SBC9 470`	`Gaia DR3 878467085735262720`
`1ES 0740+29.0`	`LTT 12061`	`SKY# 14262`
`2EUVE J0743+28.8`	`2MASS J07431872+2853009`	*`SV ZI 651`**
`EUVE J0743+28.8`	`NLTT 18323`	`TD1 10768`

References (499 between 1850 and 2026) (Total 499)
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

Data at NED - NASA/IPAC Extragalactic Database : * sig Gem

Link by name to the catalogue in VizieR :

`AG+29 890`	`BD+29 1590`	`CABS 73`	`CCDM J07433+2854A`	`2E 1861`
`EUVE J0743+28.8`	`FIRST J074318.6+285302`	`HD 62044`	`HIC 37629`	`HIP 37629`
`HR 2973`	`IRAS 07401+2900`	`IRC +30191`	`LSPM J0743+2853`	`2MASS J07431872+2853009`
`NLTT 18323`	`PLX 1821`	`PPM 97883`	`RAFGL 1174`	`2RE J074317+285304`
`2RE J0743+285`	`1RXS J074318.7+285306`	`SAO 79638`	`TD1 10768`	`TYC 1924-2022-1`
`USNO-B1.0 1188-00152360`	`uvby98 100062044`	*`V sig Gem`**	`WDS J07433+2853A`	`Gaia DR2 878467085734742400`
`Gaia DR3 878467085735262720`

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