2023RNAAS...7..139M

Query : 2023RNAAS...7..139M

2023RNAAS...7..139M - Research Notes of the AAS, 7, 139 (2023/July-0)

The Behavior of Bp He-weak Stars in the Far UV-Paper IX: HD 142990.

MONIER R.

Abstract (from CDS):

The analysis of eighteen spectra of the B6 He-weak star HD 142990 recorded by the SWP camera on board the International Ultraviolet Explorer reveals variations of the far-ultraviolet spectral energy distribution shortwards of 1700 Å over about 6 hr, ie. about 25% of the rotational period. Several Si II, Si III and Si IV vary consistently. Silicon must be distributed in a non uniform manner over the surface of HD 142990 so as to modulate the FUV flux over the rotational period. The low resolution spectra also confirm this variability.

Journal keyword(s): Chemically peculiar stars - Helium-weak 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	V* V913 Sco	Ro*	15 58 34.8665694960	-24 49 53.361727284	4.70	5.34	5.43			B5V	226	0

Query : 2023RNAAS...7..139M

Basic data :

V* V913 Sco -- Rotating Variable

* (2019AJ,HD,...), Ro* (2003AstL), UV (TD1,[SC96]), V* (V*), NIR (2MASS), MIR (WISEA)

15 58 34.8665694960 -24 49 53.361727284 (Optical) [ 0.0831 0.0463 90 ] A 2020yCat.1350....0G

15 55 34.6450369973 -24 41 19.900644608 [ 0.0831 0.0463 90 ]

348.1191798856444 +21.1965099774519 [ 0.0831 0.0463 90 ]

-12.451 -24.582 [0.100 0.061 90] A 2020yCat.1350....0G

V(km/s) -14.86197 [0.623904] / z(~) -0.000050 [0.000002] / cz -14.86 [0.62] (Opt) A 2022A&A...667A.163M

7.005 [0.0908] A 2020yCat.1350....0G

B5V C 1988MSS...C04....0H

U 4.70 [~] C 2002yCat.2237....0D

B 5.34 [~] C 2002yCat.2237....0D

V 5.43 [~] C 2002yCat.2237....0D

G 5.394046 [0.002956] C 2020yCat.1350....0G

J 5.585 [0.018] C 2003yCat.2246....0C

H 5.672 [0.036] C 2003yCat.2246....0C

K 5.649 [0.026] C 2003yCat.2246....0C

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`HD 142990`	`HIC 78246`	`SKY# 28835`	`WEB 13231`
`ALS 15022`	`HIP 78246`	`TD1 18714`	`WISEA J155834.86-244953.5`
`CD-24 12427`	`HR 5942`	`TIC 77676815`	`YZ 114 11235`
`CPD-24 5613`	`2MASS J15583487-2449531`	`TYC 6783-2695-1`	`[B10] 4058`
`EPIC 203814494`	`PPM 264936`	`UBV 13543`	`[SC96] Oph 22`
`GC 21442`	`Renson 40530`	`UBV M 21060`	`Gaia DR3 6236109243250504576`
`GCRV 9188`	`ROT 2257`	`uvby98 100142990`	`Gaia DR2 6236109243250504576`
`GEN# +1.00142990`	`SAO 183982`	*`V V913 Sco`**

References (226 between 1850 and 2026) (Total 226)
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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`HD 142990`	`ALS 15022`	`CD-24 12427`	`CPD-24 5613`	`HIC 78246`
`HIP 78246`	`HR 5942`	`2MASS J15583487-2449531`	`PPM 264936`	`SAO 183982`
`TD1 18714`	`TYC 6783-2695-1`	`uvby98 100142990`	*`V V913 Sco`**	`WISEA J155834.86-244953.5`
`Gaia DR3 6236109243250504576`	`Gaia DR2 6236109243250504576`

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