Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

CBAT "Transient Object Followup Reports"

PSN J22042153+3944340

PSN J22042153+3944340   2013 10 19.15  *  22 04 21.53 +39 44 34.0  15.3 U   10W   3S  U11895    9 2


2013 10 21.0942

I took confirmation images with 0.43-m f/6.8 astrograph + FLI-PL6303E CCD camera at Mayhill, NM, USA, remotely. Photometric results were V=15.52 and Ic=15.35. My image available at http://meineko.sakura.ne.jp/ccd/PSN_J22042153+3944340.jpg Seiichiro Kiyota (Kamagaya, Japan)



2013 10 21.745

This transient was observed on 2013 10 21.745 by Gianluca Masi, Francesca Nocentini and Patrick Schmeer, remotely using the 17" robotic unit part of the Virtual Telescope Project facility in Ceccano, Italy. Unfiltered images show a source at mag. 15.8 (R mags for the reference stars from UCAC-4). We also performed astrometry, getting the following end figures: 21.51s 34.1" (J2000.0, mean residuals of 0.15" on both axes).



2013 10 21.25

Spectroscopic confirmation for PSN J22042153 +3944340 A spectrum of PSN J22042153+3944340 was obtained with the FLOYDS (wavelength range 320-1000nm) on Faulkes Telescope North on UT Oct. 21.25 2013. The spectrum reveals it to be a Type Ia supernova at or before maximum light. The redshift of the supernova is consistent with that of the host galaxy, UGC 11895 (z=0.0156). Classification was performed via supernova spectrum cross correlation using SNID (Blondin & Tonry, 2007, ApJ, 666, 1024). (From ATEL 5495) D. Rich



2013 10 21.85

Several low resolution spectra of this transient were obtained on 2013 10 21.85 by Gianluca Masi, Francesca Nocentini and Patrick Schmeer, remotely using the 14" robotic unit part of the Virtual Telescope Project facility in Ceccano, Italy. For this, we used a 100 lines/mm grating, with a dispersion of 34.7 angstroms/pixel. We see very clearly Si II absorption around 6150 angstroms, suggesting this is a type Ia supernova.



2013 10 22.170

This possible supernova in UGC 11895 was detected using various filters (4 x 5 min exposures each filter) Photometry: Mag 16.06 +/- 0.22 C (V for ref); 15.66 +/- 0.14 V; 15.88 +/- 0.13 R; 15.06 +/- 0.14 B, 16.33 +/- 0.20 I Astrometry: RA 22 04 21.55 Dec +39 44 34.5 These data were collected remotely by Joseph Brimacombe, Cairns, Australia. Link to image and further information: http://www.flickr.com/photos/43846774@N02/10439187785/



2013 10 31.9160

SN to be confirmed in UGC 11895 detected with 3 x 3 min images (exp 9 min). Astrometry: RA 22 04 21.63 Dec +39 44 33.04 (ref stars UCAC2) Photometry: 15.74CR +/-0.01 (USNO A2R Ref stars 153R, 158R, 160R, 162R). Measure on unfiltered image. Observer and measurer: Xavier Bros, ANYSLLUM OBSERVATORY, Ager, Spain. T-350mm f4.6. Link to image and further information: http://anysllum.com/PSN_UGC11895.jpg



2013 11 06.9006

Mag.: 16.1(V) R.A.: 22 04 21.53; Decl.: +39 44 33.0 (2000.0). Reference: PPMXL Observer: Massimiliano Martignoni - Observatory: Stazione Astronomica Betelgeuse (B75), Magnago, Italy Telescope: Schmidt-Cassegrain 0.25m-f/10.0 - CCD: KAF0261E


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