2023RNAAS...7...82M

Query : 2023RNAAS...7...82M

2023RNAAS...7...82M - Research Notes of the AAS, 7, 82 (2023/April-0)

The Behavior of Bp He-weak Stars in the Far-UV-Paper 5: HD 142301.

MONIER R.

Abstract (from CDS):

The analysis of eigthteen spectra of the B8 He-weak Si star HD 142301 recorded by the SWP camera on board the International Ultraviolet Explorer reveals large variations of the far-ultraviolet spectral energy distribution over a time interval of 14 yr and 5 months. Variations are present shortwards of 1700 Å which can be partly attributed to variations of lines and continuum of Si II. Other lines due to C II and Si III also contribute to the opacity in this range too. The variations suggest that silicon is not distributed in a uniform manner over the surface and that the horizontal gradients of the silicon abundance are probably large.

Abstract Copyright: © 2023. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Chemically peculiar stars - Helium-weak stars

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 * 3 Sco Ro* 15 54 39.5296532472 -25 14 37.459966128 5.23 5.81 5.87     B8III/IV 232 0

Query : 2023RNAAS...7...82M

Basic data :
* 3 Sco -- Rotating Variable
Other object types: otypes_help 		* (2019AJ,*,...), UV (CEL,TD1,...), Ro* (2003AstL), V* (V*), X (2XMM), NIR (2MASS), MIR (WISEA)
ICRS coord. (ep=J2000) : 		15 54 39.5296532472 -25 14 37.459966128 (Optical) [ 0.0486 0.0301 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		15 51 39.0896542352 -25 05 49.321204207 [ 0.0486 0.0301 90 ]
Gal coord. (ep=J2000) : 		347.1236872134165 +21.5121742943041 [ 0.0486 0.0301 90 ]
Proper motions mas/yr : 		-13.214 -24.567 [0.065 0.041 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) -3.890 [0.530] / z(~) -0.000013 [0.000002] / cz -3.89 [0.53]
   (Opt) A 2023ApJS..266...11B
Parallaxes (mas): 		6.9332 [0.0542] A 2020yCat.1350....0G
Spectral type: 		B8III/IV D 1988MSS...C04....0H
Fluxes (7) :
U 5.23 [~] C 2002yCat.2237....0D
B 5.81 [~] C 2002yCat.2237....0D
V 5.87 [~] C 2002yCat.2237....0D
G 5.841276 [0.002802] C 2020yCat.1350....0G
J 5.925 [0.021] C 2003yCat.2246....0C
H 6.000 [0.034] C 2003yCat.2246....0C
K 5.988 [0.018] C 2003yCat.2246....0C
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 4 : 9530 Display criteria :

Identifiers (35) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

* 3 Sco HD 142301 SKY# 28730 WEB 13174
ALS 15019 HIC 77909 SRS 13233 WISEA J155439.51-251437.7
CD-24 12365 HIP 77909 TD1 18652 2XMM J155439.4-251436
CEL 4403 HR 5912 TIC 24189282 YZ 115 11197
CPD-24 5590 2MASS J15543952-2514375 TYC 6783-2696-1 [SC96] Oph 13
GC 21355 N30 3573 UBV 13497 Gaia DR3 6235747125966268928
GCRV 65783 PPM 264844 UBV M 21017 Gaia DR2 6235747125966268928
GEN# +1.00142301 Renson 40380 uvby98 100142301 Gaia DR1 6235747121668613120
GSC 06783-02696 SAO 183914 V* V927 Sco

References (232 between 1850 and 2026) (Total 232)
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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Collections of Measurements Description of Measurements

Velocities : 7    Diameter : 1    Distance : 2    Rot : 5    Fe/H : 2    Plx : 4    PM : 6    SpT : 10   

   

Observing logs
IUE : 10    XMM : 1   

   

External archives :

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

Link by name to the catalogue in VizieR :

ALS 15019 CD-24 12365 CEL 4403 CPD-24 5590 GSC 06783-02696
HD 142301 HIC 77909 HIP 77909 HR 5912 2MASS J15543952-2514375
PPM 264844 SAO 183914 TD1 18652 TYC 6783-2696-1 uvby98 100142301
V* V927 Sco WISEA J155439.51-251437.7 Gaia DR3 6235747125966268928 Gaia DR2 6235747125966268928 Gaia DR1 6235747121668613120

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