2006A&A...452..885C

Query : 2006A&A...452..885C

2006A&A...452..885C - Astronomy and Astrophysics, volume 452885-895 (2006/6-4)

A new analytical thin-dusty-shell model to interpret interferometric data. Application to the S star V* pi.01 Gru.

CRUZALEBES P. and SACUTO S.

Abstract (from CDS):

High angular resolution techniques allow the determination of physical and geometrical parameters characterizing the circumstellar dusty environment of late-type stars. The resolution of the radiative transfer equation under the thin-shell approximation provides an analytical expression for the interferometric visibility profile, which can then be compared to simple ad-hoc geometrical models and to physical models based on radiative transfer. Using the DUSTY numerical code to calculate theoretical visibilities of the S star π¹ Gru, in agreement with spectrophotometric measurements from the near to the far infrared, we compared the validity of the output parameters found by the χ² least-square analysis of the visibility, given with the thin-shell model and with a simple disk+ring geometrical model of the envelope. The results are discussed in terms of fitting the shape of the intensity profile and of the number of free parameters to be considered.

Abstract Copyright: ∼

Journal keyword(s): radiative transfer - methods: analytical - techniques: interferometric - circumstellar matter - stars: late-type - infrared: 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	* pi.01 Gru	S*	22 22 44.2083897000	-45 56 52.791160956	10.52	8.62	6.55	3.19	0.52	S5,7:	216	0

Query : 2006A&A...452..885C

Basic data :

* pi.01 Gru -- S Star

* (*,AC2000,...), ** (**,CCDM,...), S* (1954ApJ,CSS,...), V* (V*,AAVSO), IR (IRAS,RAFGL), AB* (1997ApJS), LP* (2009yCat), LP? (2022yCat), NIR (2MASS), MIR (WISE)

22 22 44.2083897000 -45 56 52.791160956 (Optical) [ 0.2330 0.2927 90 ] A 2020yCat.1350....0G

22 19 41.2949809376 -46 12 03.061052975 [ 0.2330 0.2927 90 ]

350.2820115212514 -55.1638036900881 [ 0.2330 0.2927 90 ]

31.106 -10.338 [0.252 0.347 90] A 2020yCat.1350....0G

6.1858 [0.4466] A 2020yCat.1350....0G

S5,7: B 1954ApJ...120..484K

U 10.52 [~] C 2002yCat.2237....0D

B 8.62 [~] C 2002yCat.2237....0D

V 6.55 [~] C 2002yCat.2237....0D

R 3.19 [~] C 2002yCat.2237....0D

G 3.592578 [0.008820] C 2020yCat.1350....0G

I 0.52 [~] C 2002yCat.2237....0D

J -0.62 [~] C 2002yCat.2237....0D

H -1.71 [~] C 2002yCat.2237....0D

K -2.06 [~] C 2002yCat.2237....0D

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*` 161 Gru`**	`GEN# +1.00212087`	`2MASS J22224445-4556524`	*`V pi.01 Gru`**
*` pi.01 Gru`**	`GSC 08439-00392`	`PPM 328190`	`WDS J22227-4557A`
*` pi. Gru`**	`HD 212087`	`RAFGL 4289`	`WISE J222244.22-455652.6`
` I 135A`**	`Hen 4-202`	*`S1 702`**	`[ELL90] 249`
`AC2000 3976182`	`HIC 110478`	`SAO 231105`	`[LFO93] 2219-46`
`CCDM J22227-4557A`	`HIP 110478`	`SKY# 42605`	`AAVSO 2216-46`
`CD-46 14292`	`HR 8521`	`TIC 382420379`	`Gaia DR3 6518817665843312000`
`CPC 0 19877`	`IDS 22166-4627 A`	`TYC 8439-392-1`	`Gaia DR2 6518817665841827200`
`CPD-46 10395`	`IRAS 22196-4612`	`UBV 21720`
`CSS 1294`	`IRAS 22194-4612`	`UCAC3 89-416212`
`GC 31273`	`JP11 3477`	`UCAC4 221-187339`

References (216 between 1850 and 2026) (Total 216)
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 :

Data at NED - NASA/IPAC Extragalactic Database : * pi.01 Gru

Link by name to the catalogue in VizieR :

`AC2000 3976182`	`CCDM J22227-4557A`	`CD-46 14292`	`CPD-46 10395`	`GSC 08439-00392`
`HD 212087`	`HIC 110478`	`HIP 110478`	`HR 8521`	`IRAS 22196-4612`
`IRAS 22194-4612`	`2MASS J22224445-4556524`	`PPM 328190`	`RAFGL 4289`	`SAO 231105`
`TYC 8439-392-1`	`UCAC3 89-416212`	`UCAC4 221-187339`	*`V pi.01 Gru`**	`WDS J22227-4557A`
`WISE J222244.22-455652.6`	`Gaia DR3 6518817665843312000`	`Gaia DR2 6518817665841827200`

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