2023RNAAS...7..236M

Query : 2023RNAAS...7..236M

2023RNAAS...7..236M - Research Notes of the AAS, 7, 236 (2023/November-0)

Abundances of Iron-peak Elements in the B8 Mn Star HD 110073.

MONIER R.

Abstract (from CDS):

The synthesis of spectral intervals in the optical range allows the determination of LTE abundances of several iron-peak elements for the chemically peculiar B8 Mn star HD 110073. Titanium, chromium and manganese are found to be overabundant by factors of 19, 4 and 250 times their respective solar abundances. Iron and nickel are deficient by factors of 0.25 and 0.10. Weak lines of Cr II formed deep in the atmosphere yield lower chromium abundances than strong lines do by a factor of 2. This supports that chromium is probably stratified vertically in the atmosphere of HD 110073. Several weak flat-bottomed lines which could be caused by vertical stratification of the abundances are present throughout the spectra. The new abundance determinations differ from previous determinations partly because the atomic data have changed. A non-uniform distribution of the elements over the surface of HD 110073 could also account for variation of the lines with time.

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

Journal keyword(s): Chemically peculiar stars - Mercury-manganese 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 * l Cen ** 12 39 52.5291353564 -39 59 14.286324017 4.16 4.56 4.64 4.66 4.75 B8II/III 122 0

Query : 2023RNAAS...7..236M

Basic data :
* l Cen -- Double or Multiple Star
Other object types: otypes_help 		* (*,ALS,...), UV (FAUST,TD1,...), ** (**,WDS), PM* (2007A&A), X (1RXS), NIR (2MASS)
ICRS coord. (ep=J2000) : 		12 39 52.5291353564 -39 59 14.286324017 (Optical) [ 0.1764 0.1207 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		12 37 09.6238323444 -39 42 44.619537029 [ 0.1764 0.1207 90 ]
Gal coord. (ep=J2000) : 		300.5292364379595 +22.8304986117967 [ 0.1764 0.1207 90 ]
Proper motions mas/yr : 		-41.544 -26.757 [0.185 0.138 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 15.1 [~] / z(~) 0.000050 [~] / cz 15.10 [~]
   (Opt) D 2023ApJS..266...41P
Parallaxes (mas): 		9.7380 [0.2028] A 2020yCat.1350....0G
Spectral type: 		B8II/III D 1982MSS...C03....0H
Fluxes (9) :
U 4.16 [~] C 2002yCat.2237....0D
B 4.56 [~] C 2002yCat.2237....0D
V 4.64 [~] C 2002yCat.2237....0D
R 4.66 [~] C 2002yCat.2237....0D
G 4.607563 [0.003120] C 2022yCat.1355....0G
I 4.75 [~] C 2002yCat.2237....0D
J 4.880 [0.037] C 2003yCat.2246....0C
H 4.903 [0.076] C 2003yCat.2246....0C
K 4.785 [0.018] C 2003yCat.2246....0C
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Identifiers (35) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

* l Cen GEN# +1.00110073 Renson 31980 UBV M 18468
** HUB 10 GSC 07762-01975 ROT 1863 uvby98 100110073
ALS 16351 HD 110073 1RXS J123952.2-395909 WDS J12399-3959AB
CD-39 7748 HIC 61789 SAO 203681 WEB 10991
CPC 18 5992 HIP 61789 SKY# 23630 [B10] 3300
CPD-39 5655 HR 4817 TD1 16416 [BBW2000] FC 43
FAUST 3338 JP11 2262 TIC 144395071 Gaia DR3 6153047015281588864
GC 17236 2MASS J12395253-3959142 TYC 7762-1975-1 Gaia DR2 6153047015281588864
GCRV 7608 PPM 290428 UBV 11350

References (122 between 1850 and 2026) (Total 122)
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 : 6    Distance : 2    Var : 1    Rot : 2    Fe/H : 6    Plx : 4    PM : 5    SpT : 7   

   

Observing logs
IUE : 2   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : * l Cen

Link by name to the catalogue in VizieR :

ALS 16351 CD-39 7748 CPD-39 5655 FAUST 3338 GSC 07762-01975
HD 110073 HIC 61789 HIP 61789 HR 4817 2MASS J12395253-3959142
PPM 290428 1RXS J123952.2-395909 SAO 203681 TD1 16416 TYC 7762-1975-1
uvby98 100110073 WDS J12399-3959AB [BBW2000] FC 43 Gaia DR3 6153047015281588864 Gaia DR2 6153047015281588864

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