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ASAS-SN 17pf is a nova in the LMC

ATel #11132; L. Chomiuk, J. Strader (MSU), K. Z. Stanek, C. S. Kochanek, J. V. Shields, T. A. Thompson (OSU), B. J. Shappee (IfA, Hawaii), T. W.-S. Holoien (Carnegie Observatories), J. L. Prieto (Diego Portales; MAS), Subo Dong (KIAA-PKU), N. Morrell, M. Phillips (LCO), T. Bohlsen
on 5 Jan 2018; 22:22 UT
Credential Certification: Laura Chomiuk (chomiuk@pa.msu.edu)

Subjects: Optical, Nova

Referred to by ATel #: 11301

We confirm the optical transient ASAS-SN 17pf as a nova in the Large Magellanic Cloud, based on recent spectroscopy. This nova is located at RA = 5:30:16.77, Dec = -73:16:11.3 (J2000). Its ASAS-SN light curve shows a multi-peaked structure; the initial, brightest peak reached V~11.8 mag on 2017 Dec 7 and a recent re-brightening more than 3 weeks after the initial peak reached V~12.8 mag. We have obtained several spectra, the most recent using the Magellan Telescope and the MAGE spectrograph on 2017 Dec 30. The spectrum shows Balmer emission lines with a complex line structure and a systemic velocity of about 250 km/s, consistent with the LMC. These lines have a FWHM of about 500--650 km/s and wings that extend to about 1600 km/s from rest wavelength. Beyond the Balmer lines, the most prominent emission lines are those of Fe II and O I, implying that it is an Fe II nova.

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