2007BaltA..16...20V

Query : 2007BaltA..16...20V

2007BaltA..16...20V - Baltic Astronomy, 16, 20-22 (2007/April-0)

The non-standard multifrequency behavior of AG Dra.

VIOTTI R.F., FRIEDJUNG M., GONZALEZ-RIESTRA R., IIJIMA T., MONTAGNI F. and ROSSI C.

Abstract (from CDS):

We summarize the behavior of AG Dra during the last 25 years, characterized by a sequence of 5 active phases (with 14 light maxima). Cool and hot outbursts are discussed. In general, during bursts the X-ray flux weakens or vanishes, which should be mostly due to an increase of the high energy opacity of the envelope, rather than to a decrease of the source temperature. An explanation is suggested for the different behavior of the HeII Zanstra temperature during the two burst types, and the possibility is considered that during all the burst events AG Dra first passes through a hot phase, and that only in the strongest bursts it evolves towards the cool burst phase.

Abstract Copyright: ∼

Journal keyword(s): stars: binaries: symbiotic - stars: individual: AG Dra - accretion - X-rays: bursts

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 V* AG Dra Sy* 16 01 41.0120557968 +66 48 10.135056672 11.50 11.06 9.74 8.52   K3IIIep 520 0

Query : 2007BaltA..16...20V

Basic data :
V* AG Dra -- Symbiotic Star
Other object types: otypes_help 		Sy* (), * (2022AJ,BD,...), X (2E,1ES,...), SB* (2022yCat,SBC9), Pe* (2020AJ), V* (V*,AAVSO), UV (2012ApJS,2RE), RG* (2019ApJ), LP* (2022yCat), C*? (2022yCat), Em* (EM*), Rad (2002MNRAS), NIR (2MASS), IR (IRAS)
ICRS coord. (ep=J2000) : 		16 01 41.0120557968 +66 48 10.135056672 (Optical) [ 0.0148 0.0138 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		16 01 23.2655536489 +66 56 25.530236123 [ 0.0148 0.0138 90 ]
Gal coord. (ep=J2000) : 		100.2876824492777 +40.9712106525478 [ 0.0148 0.0138 90 ]
Proper motions mas/yr : 		-6.934 -5.851 [0.019 0.020 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) -147.080994 [0.013585] / z(spectroscopic) -0.000490 [0.000000] / cz -147.04 [0.01]
   (NIR) A 2020AJ....160..120J
Parallaxes (mas): 		0.3411 [0.015] A 2020yCat.1350....0G
Spectral type: 		K3IIIep C 2011ARep...55...31S
Fluxes (8) :
U 11.50 [~] C 2002yCat.2237....0D
B 11.06 [~] C 2002yCat.2237....0D
V 9.74 [~] C 2002yCat.2237....0D
R 8.52 [~] C 2002yCat.2237....0D
G 9.172479 [0.003827] C 2020yCat.1350....0G
J 7.154 [0.023] C 2003yCat.2246....0C
H 6.365 [0.017] C 2003yCat.2246....0C
K 6.209 [0.016] C 2003yCat.2246....0C
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Identifiers (38) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

BD+67 922 GSC 04195-00254 RX J1601.6+6648 2XMM J160141.0+664810
AG+66 715 HIC 78512 1RXS J160141.2+664811 [P2004] 22
AP J16014101+6648101 HIP 78512 SAO 16931 [TSA98] J160141.63+664802.73
BPS BS 16087-0012 IRAS 16013+6656 SBC9 884 [ZEH2003] RX J1601.6+6648 1
2E 3573 JP11 236 SV* SVS 1155 AAVSO 1601+67
2E 1601.3+6656 2MASS J16014101+6648101 TIC 237100139 Gaia DR3 1642955252784454144
EM* CDS 889 PPM 19692 TYC 4195-254-1 Gaia DR1 1642955248488167808
1ES 1601+66.9 RBS 1547 UBV 13635 Gaia DR2 1642955252784454144
GCRV 9231 2RE J1601+664 V* AG Dra
GEN# +0.06700922 2RE J160133+664805 WEB 13272

References (520 between 1850 and 2026) (Total 520)
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 : 8    Distance : 1    Var : 2    Rot : 1    Fe/H : 5    Plx : 3    PM : 5    SpT : 2   

   

Observing logs
ISO : 2    IUE : 169    XMM : 3   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : V* AG Dra

Link by name to the catalogue in VizieR :

BD+67 922 AG+66 715 AP J16014101+6648101 2E 3573 GSC 04195-00254
HIC 78512 HIP 78512 IRAS 16013+6656 2MASS J16014101+6648101 PPM 19692
2RE J1601+664 2RE J160133+664805 1RXS J160141.2+664811 SAO 16931 TYC 4195-254-1
V* AG Dra Gaia DR3 1642955252784454144 Gaia DR1 1642955248488167808 Gaia DR2 1642955252784454144

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