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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
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 ). 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: -------------------------------------------- RA (2000) DE Designation(s) -------------------------------------------- 16 01 41.0 +66 48 10 AG Dra = HIP 78512 -------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 37 172 Our UBV Photometry of AG Dra
See Also: J/A+A/415/273 : UVBRI photometry and spectroscopy of AG Dra (Leedjarv+, 2004) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
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)
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
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 01-Jun-2010
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