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Astron. Astrophys. 331, 187-192 (1998)

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A possible orbital period for the dwarf nova V1101 Aql *

Nicola Masetti 1, 2 and Massimo Della Valle 2

1 Dipartimento di Astronomia, Università di Bologna, via Zamboni 33, I-40126 Bologna, Italy
2 Dipartimento di Astronomia, Università di Padova, vicolo dell'Osservatorio 5, I-35122 Padua, Italy

Received 12 June 1997 / Accepted 7 October 1997


We have performed a Discrete Fourier Transform on 136 CCD B, V and R frames of the Z Cam-type dwarf nova V1101 Aql. Our analysis indicates as possible orbital period [FORMULA] = [FORMULA], though we cannot exclude the alias at [FORMULA]. We estimate the distance to the system to be about 300 pc. We possibly discovered a bright bow-shaped nebulosity around the object.

Key words: binaries: close – stars: individual: V1101 Aql – novae, cataclysmic variables – accretion, accretion disks

* Based on observations obtained at the European Southern Observatory, La Silla, Chile and at the Osservatorio Astrofisico di Asiago, Italy.

Send offprint requests to: N. Masetti, Univ. Bologna (masetti@astbo3.bo.astro.it)

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© European Southern Observatory (ESO) 1998

Online publication: February 4, 1998