J/PASP/121/1070 UBV photometry of 2006-2008 outburst of AG Dra (Munari+, 2009)
The 2006-2008 outburst of AG Draconis.
Munari U., Siviero A., Ochner P., Wallerstein G., Castellani F.,
Righetti G., Cherini G., Valisa P., Cetrulo G.
<Publ. Astron. Soc. Pac., 121, 1070-1075 (2009)>
=2009PASP..121.1070M 2009PASP..121.1070M
ADC_Keywords: Binaries, spectroscopic ; Photometry, UBV
Abstract:
We describe photometric and spectroscopic observations of the major
outburst that AG Dra underwent between 2006 and 2008. The outburst
peaked at U=8.4, B=9.0, V=8.7 around 2006 September 6, making it
the brightest U-band event since the 1994 outburst. It was of the cold
type, according to the classification of AG Dra outbursts introduced
by Gonzalez-Riestra et al. (2006JAVSO..35..172G 2006JAVSO..35..172G ). A second, fainter
maximum (this time of the hot type) followed 400 days after the
primary one, peaking at U=9.1, B=9.7, V=9.0 on 2007 October 7. The
outburst phase ended about 600 days after the primary maximum. High
resolution spectra obtained during early decline from primary maximum
showed emission lines of Mg II, Si II, Ti II, and Fe II in addition to
the usual lines of H, He I, and He II.
Description:
UVB photometry of AG Dra was independently obtained with several
separate telescopes operated in Italy by ANS.
Objects:
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RA (2000) DE Designation(s)
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16 01 41.0 +66 48 10 AG Dra = HIP 78512
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 37 172 Our UBV Photometry of AG Dra
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See Also:
J/A+A/415/273 : UVBRI photometry and spectroscopy of AG Dra (Leedjarv+, 2004)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 12 F12.4 d HJD Heliocentric Julian date
14- 19 F6.3 mag Bmag ?=- B magnitude
21- 25 F5.3 mag B-V ?=- B-V colour index
27- 32 F6.3 mag U-B ?=- U-B colour index
34- 37 A4 --- Tel Telescope (1)
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Note (1): Telescopes as follows:
R010 = 0.13m f/6.6 Vixen ED130SS refractor, equipped with Custom
Scientific filters and a Starlight SXV-H9 CCD camera,
located in Trieste
R011 = Not explained in the paper
R020 = 0.40m f/5 Newton reflector of the P. Pizzinato Observatory
located in Bologna, feeding light to a HiSis 23ME CCD through
Schuler filters
R030 = 0.30m Meade RCX-400 f/8 Schmidt-Cassegrain telescope of
Associazione Astrofili Valle di Cembra (Trento), with a SBIG
ST-9 CCD, a Omega B and a V Custom Scientific filters
R050 = 0.25m f/10 Meade LX200 telescope in Rovereto (Trento),
equipped with a Apogee Alta U47 CCD camera and Optec filters
R060 = 0.40m f/8 Ritchey-Chretien telescope operated by Osservatorio
del Monte Baldo (Verona), housing a Finger Lake Instruments
ML1001E CCD camera and Schuler filters
R100 = 0.70m f/8 Ritchey-Cretien telescope of Gruppo Astronomico La
Polse di Cougnes (Udine), which has an Apogee ALTA U9000 CCD
Camera and Schuler filters
R130 = 0.50m f/6 Ritchey-Cretien telescope operated by Associazione
Ternana Astrofili in Stroncone (Terni), equipped with an
Sbig STL1001E CCD Camera and Optec filters
R150 = 0.20m C8 Celestron telescope in Granarolo (Bologna), with a
Starlight SXV-H9 CCD Camera and Custom Scientific filters
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 01-Jun-2010