1994A&A...287..591J

Query : 1994A&A...287..591J

1994A&A...287..591J - Astronomy and Astrophysics, volume 287591-600 (1994/7-2)

Ultraviolet variations in the spectrum of the visible central star of Abell 35.

JASNIEWICZ G., LAPIERRE G. and MONIER R.

Abstract (from CDS):

We report on simultaneous IUE and photometric observations carried out in March 1992 of the G8IV star BD-22 3467 located at the centre of the planetary nebula Abell 35. The main feature of the IUE low resolution spectra is a strong Mg II emission, which is common in fairly close binaries. Meanwhile no variations of the hot companion were detected in the SWP spectrum, variations were detected in the intensity of the MgII line arising from the G-star; these variations, like those of the CaII measured by us previously (Jasniewicz et al. 1992), seem to be in antiphase with the visible V-light curve. From 4 LWP spectra extracted from the archive ULDA we also show the existence of long-term variations of the Mg II line possibly linked with the mean brightness of the star. Thus the present material reinforces the idea that chromospheric activity occurs at the surface of the rapidly rotating G-star and that the visible light is modulated by dark spots.

Abstract Copyright: ∼

Journal keyword(s): ISM: planetary nebulae: individual: Abell 35 - stars: close - binaries - stars: chromospheres - stars: variables

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 PN A66 35 PN 12 53 32.7857105088 -22 52 22.569625704   10.52 9.69     G8III-IV+DAO 207 1

Query : 1994A&A...287..591J

Basic data :
PN A66 35 -- Planetary Nebula
Other object types: otypes_help 		* (BD,CD,...), PN (2013MNRAS,PN,...), V* (V*,[DWS97]), WD* (WD), PM* (2018yCat), HII (SH), NIR (2MASS)
ICRS coord. (ep=J2000) : 		12 53 32.7857105088 -22 52 22.569625704 (Optical) [ 0.2542 0.2221 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		12 50 52.9046432054 -22 36 05.455890762 [ 0.2542 0.2221 90 ]
Gal coord. (ep=J2000) : 		303.5659051004859 +39.9962160445970 [ 0.2542 0.2221 90 ]
Proper motions mas/yr : 		-56.021 -13.053 [0.412 0.272 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) -40.52 [5.77] / z(spectroscopic) -0.000135 [0.000019] / cz -40.52 [5.77]
   (Opt) D 2018yCat.1345....0G
Parallaxes (mas): 		7.3029 [0.3187] A 2020yCat.1350....0G
Spectral type: 		G8III-IV+DAO C 2013yCat....1.2023S
Angular size (arcmin): 		12.867 12.867 90 (Rad) D 2008ApJ...689..194S
Fluxes (6) :
B 10.52 [~] E ~
V 9.69 [~] E ~
G 9.358344 [0.003351] C 2020yCat.1350....0G
J 7.899 [0.021] C 2003yCat.2246....0C
H 7.409 [0.046] C 2003yCat.2246....0C
K 7.264 [0.021] C 2003yCat.2246....0C
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Identifiers (28) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

PN G303.6+40.0 HIC 62905 PN VV' 112 V* LW Hya
BD-22 3467 HIP 62905 PPM 260942 WD 1250-226
CD-22 9659 2MASS J12533279-2252224 SAO 181201 YZ 112 9629
CPD-22 5522 PK 303+40 1 SH 2-313 [DWS97] Hya 3
GEN# -0.02203467 PMC 90-93 6472 TIC 5966674 Gaia DR2 3499149202247569536
GSC2 S2033100229 PN A55 24 TYC 6697-77-1 Gaia DR3 3499149202247569536
GSC 06697-00077 PN A66 35 UCAC2 22704512 Gaia DR1 3499149197952168832

References (207 between 1850 and 2026) (Total 207)
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 : 2    Diameter : 1    Distance : 4    Rot : 1    Plx : 5    PM : 4   

   

Observing logs
IUE : 31   

   

External archives :

Data at NED - NASA/IPAC Extragalactic Database : PN A66 35

Link by name to the catalogue in VizieR :

PN G303.6+40.0 BD-22 3467 CD-22 9659 CPD-22 5522 GSC 06697-00077
HIC 62905 HIP 62905 2MASS J12533279-2252224 PPM 260942 SAO 181201
TYC 6697-77-1 UCAC2 22704512 V* LW Hya WD 1250-226 Gaia DR2 3499149202247569536
Gaia DR3 3499149202247569536 Gaia DR1 3499149197952168832

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