1997A&A...326..277K

Query : 1997A&A...326..277K

1997A&A...326..277K - Astronomy and Astrophysics, volume 326277-286 (1997/10-1)

Spherically symmetric model atmospheres using approximate lambda operators. III. The equations of statistical equilibrium with occupation probabilities.

KUBAT J.

Abstract (from CDS):

The occupation probability formalism is implemented into the equations of statistical equilibrium. The equations and corresponding expressions for rates are presented in detail. The improved equations are used for the calculation of sample spherically symmetric NLTE model atmospheres. The difference between this formalism and standard cutoff formula is studied for pure hydrogen atmospheres. It is small for main-sequence and sdO stars. However, a larger difference is found for white dwarfs.

Abstract Copyright: ∼

Journal keyword(s): stars: atmospheres - atomic processes - methods: numerical

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	BD+75 325	HS*	08 10 49.4903003712	+74 57 57.931973676	8.002	9.23	9.50	9.698	9.884	sdO5	267	0

Query : 1997A&A...326..277K

Basic data :

BD+75 325 -- Hot Subdwarf

* (BD,AG,...), blu (2019A&A,FB), HS* (1957PASP), V* (NSV), UV (TD1), NIR (2MASS)

08 10 49.4903003712 +74 57 57.931973676 (Optical) [ 0.0351 0.0454 90 ] A 2020yCat.1350....0G

08 04 43.5285056529 +75 06 47.556186286 [ 0.0351 0.0454 90 ]

139.5138846771952 +31.2486391007762 [ 0.0351 0.0454 90 ]

7.143 10.572 [0.047 0.057 90] A 2020yCat.1350....0G

V(km/s) -19.0 [655.35] / z(~) -0.000063 [0.002186] / cz -19.00 [655.35] D 1957PASP...69..242G

6.8792 [0.0561] A 2020yCat.1350....0G

sdO5 D 1957PASP...69..242G

U 8.002 [~] D 2007AJ....133..768L

B 9.23 [0.02] D 2000A&A...355L..27H

V 9.50 [0.02] D 2000A&A...355L..27H

R 9.698 [~] D 2007AJ....133..768L

G 9.485024 [0.002809] C 2020yCat.1350....0G

I 9.884 [~] D 2007AJ....133..768L

J 10.261 [0.018] C 2003yCat.2246....0C

H 10.425 [0.017] C 2003yCat.2246....0C

K 10.549 [0.017] C 2003yCat.2246....0C

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`BD+75 325`	`GEN# +0.07500325`	`Renson 18360`	`uvby98 007500325 V`
`AG+75 374`	`GSC 04380-02196`	`SAO 6435`	`[CJ92] SA 4 13`
`ALS 18862`	`HIC 40047`	`TD1 30853`	`Gaia DR2 1135587497636732672`
`BSD 4-566`	`HIP 40047`	`TIC 441630081`	`Gaia DR3 1135587497636732672`
`FB 49`	`2MASS J08104947+7457579`	`TYC 4380-2196-1`
`GAT 253`	`NSV 17739`	`UBV 7736`
`GCRV 59332`	`PPM 6937`	`UBV M 4883`

References (267 between 1850 and 2026) (Total 267)
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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`BD+75 325`	`AG+75 374`	`ALS 18862`	`GSC 04380-02196`	`HIC 40047`
`HIP 40047`	`2MASS J08104947+7457579`	`NSV 17739`	`PPM 6937`	`SAO 6435`
`TD1 30853`	`TYC 4380-2196-1`	`uvby98 007500325 V`	`Gaia DR2 1135587497636732672`	`Gaia DR3 1135587497636732672`

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