2005ApJ...634L.173M

Query : 2005ApJ...634L.173M

2005ApJ...634L.173M - Astrophys. J., 634, L173-L176 (2005/December-1)

A sun in the spectroscopic binary IM Pegasi, the guide star for the Gravity probe B mission.

MARSDEN S.C., BERDYUGINA S.V., DONATI J.-F., EATON J.A., WILLIAMSON M.H., ILYIN I., FISCHER D.A., MUNOZ M., ISAACSON H., RATNER M.I., SEMEL M., PETIT P. and CARTER B.D.

Abstract (from CDS):

We present the first detection of the secondary of the spectroscopic binary system IM Pegasi (HR 8703), the guide star for the NASA-Stanford relativity gyroscope mission Gravity Probe B. In support of this mission, high-resolution echelle spectra of IM Peg have been obtained on an almost nightly basis. Applying the technique of least-squares deconvolution, we achieve very high signal-to-noise ratio line profiles and detect the orbit of the secondary of the system. Combining almost 700 new radial velocity measurements of both the primary and secondary of the system with previous measurements, we derive improved orbital parameters of the IM Peg system. Using these estimates along with the previously determined range of orbital inclination angles for the system, we find that the primary of IM Peg is a giant of mass 1.8±0.2 M_☉, while the secondary is a dwarf of mass 1.0±0.1 M_☉.

Abstract Copyright: ∼

Journal keyword(s): Stars: Binaries: Spectroscopic - Stars: Individual: Constellation Name: IM Pegasi

Simbad objects: 1

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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	V* IM Peg	RS*	22 53 02.2663977960	+16 50 28.300547040		7.024	5.890			K2III	357	1

Query : 2005ApJ...634L.173M

Basic data :

V* IM Peg -- RS CVn Variable

RS* (), * (HD,AG,...), X (2E,RBS,...), SB* (CABS,CCABS,...), V* (NSV,V*,...), NIR (2MASS), IR (IRAS)

22 53 02.2663977960 +16 50 28.300547040 (Optical) [ 0.0565 0.0485 90 ] A 2020yCat.1350....0G

22 50 34.4504305640 +16 34 31.525554937 [ 0.0565 0.0485 90 ]

086.3641914716411 -37.4842508725609 [ 0.0565 0.0485 90 ]

-21.185 -27.444 [0.063 0.060 90] A 2020yCat.1350....0G

V(km/s) -14.43 [0.04] / z(~) -0.000048 [0.000000] / cz -14.43 [0.04] A 2004MNRAS.349.1069K

10.1655 [0.0653] A 2020yCat.1350....0G

K2III C 2009A&ARv..17..251S

B 7.024 [0.015] D 2000A&A...355L..27H

V 5.890 [0.009] D 2000A&A...355L..27H

G 5.705932 [0.006688] C 2020yCat.1350....0G

J 3.929 [0.338] E 2003yCat.2246....0C

H 3.398 [0.246] D 2003yCat.2246....0C

K 3.253 [0.324] E 2003yCat.2246....0C

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`HD 216489`	`GEN# +1.00216489`	`RX J2253.0+1650`	`WEB 20117`
`AG+16 2549`	`GSC 01698-01389`	`1RXS J225302.0+165029`	`XSS J22526+1650`
`BD+16 4831`	`HIC 112997`	`SAO 108231`	`YZ 16 9354`
`CABS 196`	`HIP 112997`	`SBC7 932`	`[ZEH2003] RX J2253.0+1650 3`
`CCABS 159`	`HR 8703`	`SBC9 1402`	`AAVSO 2248+16`
`2E 4642`	`IRAS 22505+1634`	`SKY# 43472`	`Gaia DR3 2829193299742131328`
`2E 2250.5+1634`	`2MASS J22530226+1650282`	`TIC 456832150`	`Gaia DR2 2829193299742131328`
`FK5 3829`	`NSV 14343`	`TYC 1698-1389-1`
`GC 31908`	`PPM 141947`	`UBV M 26688`
`GCRV 14366`	`RBS 1908`	*`V IM Peg`**

References (357 between 1850 and 2026) (Total 357)
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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External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : V* IM Peg

Link by name to the catalogue in VizieR :

`HD 216489`	`AG+16 2549`	`BD+16 4831`	`CABS 196`	`2E 4642`
`FK5 3829`	`GSC 01698-01389`	`HIC 112997`	`HIP 112997`	`HR 8703`
`IRAS 22505+1634`	`2MASS J22530226+1650282`	`NSV 14343`	`PPM 141947`	`1RXS J225302.0+165029`
`SAO 108231`	`TYC 1698-1389-1`	*`V IM Peg`**	`Gaia DR3 2829193299742131328`	`Gaia DR2 2829193299742131328`

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