Search Results - "Ashok, N M"

V445 Puppis: Dustier than a Thousand Novae by Banerjee, D. P. K., Evans, A., Woodward, C. E., Starrfield, S., Su, K. Y. L., Ashok, N. M., Wagner, R. M.

“…Abstract 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…”
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Snowflakes in a Furnace: Formation of CO and Dust in a Recurrent Nova Eruption by 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.

“…Abstract 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…”
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The expanding fireball of Nova Delphini 2013 by Schaefer, G. H., Brummelaar, T. ten, Gies, D. R., Farrington, C. D., Kloppenborg, B., Chesneau, O., Monnier, J. D., Ridgway, S. T., Scott, N., Tallon-Bosc, I., McAlister, H. A., Boyajian, T., Maestro, V., Mourard, D., Meilland, A., Nardetto, N., Stee, P., Sturmann, J., Vargas, N., Baron, F., Ireland, M., Baines, E. K., Che, X., Jones, J., Richardson, N. D., Roettenbacher, R. M., Sturmann, L., Turner, N. H., Tuthill, P., van Belle, G., von Braun, K., Zavala, R. T., Banerjee, D. P. K., Ashok, N. M., Joshi, V., Becker, J., Muirhead, P. S.

“…High spatial resolution is needed to study the early development of a nova; here measurements of the angular size and radial velocity of Nova Delphini 2013…”
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Infrared studies of Nova Scorpii 2014: an outburst in a symbiotic system sans an accompanying blast wave by Joshi, Vishal, Banerjee, D. P. K., Ashok, N. M., Venkataraman, V, Walter, F. M.

“…Near-IR (NIR) spectroscopy is presented for Nova Scorpii 2014. It is shown that the outburst occurred in a symbiotic binary system – an extremely rare…”
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The 2010 nova outburst of the symbiotic Mira V407 Cyg by Munari, U., Joshi, V. H., Ashok, N. M., Banerjee, D. P. K., Valisa, P., Milani, A., Siviero, A., Dallaporta, S., Castellani, F.

“…ABSTRACT The nova outburst experienced in 2010 by the symbiotic binary Mira V407 Cyg has been extensively studied at optical and infrared wavelengths with both…”
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The hybrid, coronal lines nova V5588 Sgr (2011 N.2) and its six repeating secondary maxima by Munari, U., Henden, A., Banerjee, D. P. K., Ashok, N. M., Righetti, G. L., Dallaporta, S., Cetrulo, G.

“…The outburst of Nova Sgr 2011 N.2 (=V5588 Sgr) was followed with optical and near-IR photometric and spectroscopic observations for 3.5 yr, beginning shortly…”
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A STUDY OF THE ROLE OF Lyβ FLUORESCENCE ON O I LINE STRENGTHS IN Be STARS by MATHEW, Blesson, BANERJEE, D. P. K, SUBRAMANIAM, A, ASHOK, N. M

“…The possibility of the Ly beta fluorescence mechanism being operational in classical Be (CBe) stars and thereby contributing to the strength of the O I…”
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Infrared studies of the Be star X Per by Mathew, Blesson, Banerjee, D. P. K., Naik, Sachindra, Ashok, N. M.

“…Photometric and spectroscopic results are presented for the Be star X Per/HD 24534 from near-infrared (near-IR) monitoring in 2010-2011. The star is one of a…”
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Near-infrared studies of V1280 Sco (Nova Scorpii 2007) by Das, R. K., Banerjee, D. P. K., Ashok, N. M., Chesneau, O.

“…We present spectroscopic and photometric results of Nova V1280 Sco which were discovered in outburst in early 2007 February. The large number of spectra…”
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Detection and evolution of the CO (Δv= 2) emission in Nova V2615 Ophiuchi (2007) by Das, R. K., Banerjee, D. P. K., Ashok, N. M.

“…We present near-infrared (1–2.5 μm) spectroscopic and photometric results of Nova V2615 Ophiuchi which was discovered in outburst in 2007 March. Our…”
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Near-infrared observations of the novae V2491 Cygni and V597 Puppis by Naik, Sachindra, Banerjee, D. P. K., Ashok, N. M.

“…We present results obtained from near-infrared JHK spectroscopic observations of novae V2491 Cygni and V597 Puppis in the early declining phases of their 2007…”
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Near-infrared H- and K-band studies of the 2006 outburst of the recurrent nova RS Ophiuchi by Banerjee, D. P. K., Das, R. K., Ashok, N. M.

“…We present near-infrared photospectroscopy in the H and K bands of the 2006 outburst of the recurrent nova RS Ophiuchi. The observations cover the period…”
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Nova V5579 Sgr 2008: near-infrared studies during maximum and the early decline phase by Raj, Ashish, Ashok, N. M., Banerjee, D. P. K.

“…We present near-infrared spectroscopic and photometric observations of the nova V5579 Sgr during the maximum and early decline phase. The spectra follow the…”
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Study of the fastest classical nova, V1674 Her: photoionization and morpho-kinemetic model analysis by Habtie, Gesesew R, Das, Ramkrishna, Pandey, Ruchi, Ashok, N M, Dubovsky, Pavol A

“…ABSTRACT We present the results of the investigation of the nova V1674 Her (2021), recognized as the swiftest classical nova, with t2 ∼ 0.90 d. The distance to…”
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Are DY Persei Stars Cooler Cousins of R Coronae Borealis Stars? by Bhowmick, Anirban, Pandey, Gajendra, Joshi, Vishal, Ashok, N. M.

“…In this paper we present, for the first time, the study of low resolution H- and K-band spectra of 7 DY Per type and suspect stars, as well as DY Persei…”
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An Evolved Disk Surrounding the Massive Main-Sequence Star MWC 297? by Manoj, P, Ho, Paul T. P, Ohashi, Nagayoshi, Zhang, Qizhou, Hasegawa, Tatsuhiko, Chen, Huei-Ru, Bhatt, H. C, Ashok, N. M

“…We present the results of the interferometric observations of the circumstellar disk surrounding MWC 297 in the continuum at 230 GHz (1.3 mm) and in the (J = 2…”
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Near-Infrared Water Lines in V838 Monocerotis by Banerjee, D. P. K, Barber, R. J, Ashok, N. M, Tennyson, J

“…V838 Monocerotis had an intriguing, nova-like outburst in 2002 January that has subsequently led to several studies of the object. It is now recognized that…”
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Near-infrared studies of the carbon monoxide and dust-forming Nova V5668 Sgr by Banerjee, D. P. K., Srivastava, Mudit K., Ashok, N. M., Venkataraman, V.

“…We present near-infrared (NIR) observations of Nova V5668 Sgr, discovered in outburst on 2015 March 15.634 ut, between 2 and 107 d after outburst. NIR spectral…”
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EARLY OBSERVATIONS AND ANALYSIS OF THE TYPE Ia SN 2014J IN M82 by Marion, G H, Sand, D J, Hsiao, E Y, Banerjee, D P K, Valenti, S, Stritzinger, M D, Vinko, J, Joshi, V, Venkataraman, V, Ashok, N M

“…We present optical and near infrared (NIR) observations of the nearby Type Ia SN 2014J. Seventeen optical and 23 NIR spectra were obtained from 10 days before…”
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The Temporal Development of Dust Formation and Destruction in Nova Sagittarii 2015#2 (V5668 SGR): A Panchromatic Study by Gehrz, R. D., Evans, A., Woodward, C. E., Helton, L. A., Banerjee, D. P. K., Srivastava, M. K., Ashok, N. M., Joshi, V., Eyres, S. P. S., Krautter, Joachim, Kuin, N. P. M., Page, K. L., Osborne, J. P., Schwarz, G. J., Shenoy, D. P., Shore, S. N., Starrfield, S. G., Wagner, R. M.

“…We present 5-28 m SOFIA FORECAST spectroscopy complemented by panchromatic X-ray through infrared observations of the CO nova V5668 Sgr documenting the…”
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