Zobrazeno 1 - 10
of 292
pro vyhledávání: '"Banerjee, D. P. K."'
We present archival and ground-based infrared observations of the gamma-ray-emitting nova V959 Mon, covering the period 100-4205 days after the 2012 eruption. We use these data to determine that the secondary in the nova system is a G5 main sequence
Externí odkaz:
http://arxiv.org/abs/2405.05032
Autor:
Banerjee, D. P. K., Woodward, C. E., Joshi, V., Evans, A., Walter, F. M., Marion, G. H., Hsiao, E. Y., Ashok, N. M., Gehrz, R. D., Starrfield, S.
We report the detection of carbon monoxide (CO) and dust, formed under hostile conditions, in recurrent nova V745 Sco about 8.7 days after its 2014 outburst. The formation of molecules or dust has not been recorded previously in the ejecta of a recur
Externí odkaz:
http://arxiv.org/abs/2308.02871
Autor:
Banerjee, D. P. K., Evans, A., Woodward, C. E., Starrfield, S., Su, K. Y. L., Ashok, N. M., Wagner, R. M.
V445 Puppis, the only known Galactic helium nova, is a unique test-bed to verify supernova (SN) theories in the single degenerate channel that involve a white dwarf (WD) accreting matter from a helium-rich donor. An estimate of the mass of the helium
Externí odkaz:
http://arxiv.org/abs/2306.10565
Autor:
Evans, A., Banerjee, D. P. K., Gehrz, R. D., Joshi, V., Ashok, N. M., Ribeiro, V. A. R. M., Darnley, M. J., Woodward, C. E., Sand, D., Marion, G. H., Diamond, T. R., Eyres, S. P. S., Wagner, R. M., Helton, L. A., Starrfield, S., Shenoy, D. P., Krautter, J., Vacca, W. D., Rushton, M. T.
We present infrared spectroscopy of the classical nova V339 Del, obtained over an similar to 2-yr period. The infrared emission lines were initially symmetrical, with half width half-maximum velocities of 525 km s(-1). In later (t greater than or sim
Externí odkaz:
http://hdl.handle.net/10150/624508
http://arizona.openrepository.com/arizona/handle/10150/624508
http://arizona.openrepository.com/arizona/handle/10150/624508
Autor:
Evans, A., Banerjee, D. P. K., Woodward, C. E., R., T., Geballe, Gehrz, R. D., Page, K. L., Starrfield, S.
We present near-infrared spectroscopy of the 2022 eruption of the recurrent nova U Sco, over the period from 5.2 to 45.4 days after outburst. This is the most intensive infrared study of this nova. Our observations started early after the outburst an
Externí odkaz:
http://arxiv.org/abs/2304.13508
Autor:
Evans, A., Geballe, T. R., Woodward, C. E., Banerjee, D. P. K., Gehrz, R. D., Starrfield, S., Shahbandeh, M.
We present infrared spectroscopy of the 2019 eruption of the recurrent nova V3890 Sgr, obtained over the period 5.1-46.3 days after the eruption. The spectrum of the red giant became more prominent as the flux declined, and by day 46.3 dominated the
Externí odkaz:
http://arxiv.org/abs/2208.09356
Autor:
Evans, A., Pimpanuwat, B., Richards, A. M. S., Banerjee, D. P. K., Munari, U., Gray, M. D., Kramer, B. Hutawarakorn, Kraus, A.
Publikováno v:
MNRAS, 514, 4894 - 4897 (2022)
There are indications that the third known eruption of the recurrent nova T CrB is imminent, and multi-wavelength observations prior to the eruption are important to characterise the system before it erupts. T CrB is known to display the SiO fundamen
Externí odkaz:
http://arxiv.org/abs/2207.14743
Autor:
Kaminsky, B., Evans, A., Pavlenko, Ya. V., Woodward, C. E., Banerjee, D. P. K., Gehrz, R. D., Walter, F., Starrfield, S., Ilyin, I., Strassmeier, K. G., Wagner, R. M.
We present an analysis of the red giant component of the recurrent nova V3890 Sgr, using data obtained before and after its 2019 eruption. Its effective temperature is $T_{\rm eff}=3050\pm$200 K for $\log{g}=0.7$, although there are modest changes in
Externí odkaz:
http://arxiv.org/abs/2207.14721
Autor:
Evans, A., Banerjee, D. P. K., Geballe, T. R., Gehrz, R. D., Woodward, C. E., Hinkle, K., Joyce, R. R., Shahbandeh, M.
We present a $0.8-2.5\,\mu$m spectrum of the Very Late Thermal Pulse object V4334 Sgr (Sakurai's Object), obtained in 2020 September. The spectrum displays a continuum that rises strongly to longer wavelengths, and is considerably brighter than the m
Externí odkaz:
http://arxiv.org/abs/2201.04004
Autor:
Woodward, C. E., Banerjee, D. P. K., Geballe, T. R., Page, K. L., Starrfield, S., Wagner, R. M.
We present near infrared spectroscopy of Nova Herculis 2021 (V1674 Her), obtained over the first 70 days of its evolution. This fastest nova on record displays a rich emission line spectrum, including strong coronal line emission with complex structu
Externí odkaz:
http://arxiv.org/abs/2110.13053