V1315 Aquilae is a cataclysmic variable star located in the constellation of Aquila. It is a type of cataclysmic variable known as a nova-like variable (NL), specifically a SW Sextantis star. Nova-like variables such as these SW Sextantis stars are characterized as having non-magnetic white dwarfs and do not undergo dwarf-nova eruptions. There is some evidence that SW Sextantis stars may contain a magnetic white dwarf. Being a SW Sextantis star, V1315 Aquilae has a high rate of mass transfer, so it is in steady-state accretion and in a constant state of outburst. It emits the majority of its light in the visible range, which is emitted from the accretion disk. The eclipse depth is 1.8 mag. No description of the donating star has been mentioned.
V1315 Aquilae has a roughly spherical shell of material around it with a maximum mass of 1×10−5 solar masses, which is too small to be related to a planetary nebula or supernova remnant. It is predicted that this shell is the remnant of a nova eruption. This nova eruption is estimated to be roughly 500 to 1200 years old. V1315 Aquilae is the first nova-like star to have been discovered with a nova shell.
- Hallinan, G.; Littlefair, S. P.; Dhillon, V. S.; Sahman, D. I. (2018-04-16). "Discovery of an old nova shell surrounding the cataclysmic variable V1315 Aql" (in en). Monthly Notices of the Royal Astronomical Society 477 (4): 4483–4490. doi:10.1093/mnras/sty950. Bibcode: 2018MNRAS.477.4483S.
- Rutten, R. G. M.; Dhillon, V. S. (1995-06-21) (in en). Spectropolarimetry of the nova-like variable V1315 Aql. doi:10.1093/mnras/277.3.777.
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- Hoard, D. H.. "The Magnetic Scenario for the SW-Sextantis Stars". https://www.dwhoard.com/biglist/magnetic.
- Rutten, R. G. M.; van Paradijs, J.; Tinbergen, J. (1992-07-01). "Reconstruction of the accretion disk in six cataclysmic variable stars". Astronomy and Astrophysics 260: 213–226. ISSN 0004-6361. Bibcode: 1992A&A...260..213R.
- Szkody, Paula (1987-10-01). "Time-resolved IUE studies of cataclysmic variables. I - Eclipsing systems IP Peg, PG 1030+590, and V1315 AQL". The Astronomical Journal 94: 1055–1061. doi:10.1086/114540. ISSN 0004-6256. Bibcode: 1987AJ.....94.1055S.
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