2011CBET.2840....2T

Query : 2011CBET.2840....2T

2011CBET.2840....2T - Central Bureau Electronic Telegrams, 2840, 2 (2011/September-0)

Variable star in Perseus: TCP J04283707+3157578.

TOMASELLA L., VALENTI S., BENETTI S., OCHNER P. and PASTORELLO A.

Abstract (from CDS):

L. Tomasella, S. Valenti, S. Benetti, and P. Ochner, Osservatorio Astronomico di Padova, Istituto Nazionale di Astrofisica; and A. Pastorello, Dipartimento di Astronomia, Universita di Padova, report that a spectrogram of TCP J04283707+3157578 (range 360-810 nm; resolution 2.2 nm) was obtained on Sept. 26.10 UT with the Ekar-Copernico 1.82-m telescope (+ AFOSC). The spectrum shows a strong H_alpha emission. Compared to H_alpha, H_beta is weak but also perceptible: the possible absorption dips surrounding H_beta could be the residual effect of the accretion disk following outburst, as is typically evident in dwarf novae (Szkody et al. 1990, Ap.J. Suppl. 73, 441). There is a trace of He I emission at 587.6 nm, while all other expected lines seems to have drowned in the noise. So the classification of this object as a cataclysmic variable is plausible.

Abstract Copyright: ∼

Journal keyword(s):

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 TCP J04283707+3157578 CV? 04 28 37.0957882488 +31 57 57.666150576           ~ 3 0

Query : 2011CBET.2840....2T

Basic data :
TCP J04283707+3157578 -- Cataclysmic Binary Candidate
Other object types: otypes_help 		CV? (2020AJ), V* (TCP), * (Gaia), ev (ZTF)
ICRS coord. (ep=J2000) : 		04 28 37.0957882488 +31 57 57.666150576 (Optical) [ 0.3631 0.3281 90 ] C 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		04 25 25.1289098044 +31 51 22.167014967 [ 0.3631 0.3281 90 ]
Gal coord. (ep=J2000) : 		167.5995559824272 -11.4925076422002 [ 0.3631 0.3281 90 ]
Fluxes (1) :
G 18.096575 [0.079357] C 2020yCat.1350....0G
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Identifiers (4) :
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TCP J04283707+3157578 ZTF18aaadvfu Gaia DR2 171636376437487616 Gaia DR3 171636376437487616

References (3 between 1850 and 2026) (Total 3)
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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Gaia DR2 171636376437487616 Gaia DR3 171636376437487616

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