Search Results - "Smartt, S. J"

The ATLAS All-Sky Stellar Reference Catalog by Tonry, J. L., Denneau, L., Flewelling, H., Heinze, A. N., Onken, C. A., Smartt, S. J., Stalder, B., Weiland, H. J., Wolf, C.

“…The Asteroid Terrestrial-impact Last Alert System (ATLAS) observes most of the sky every night in search of dangerous asteroids. Its data are also used to…”
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The death of massive stars – I. Observational constraints on the progenitors of Type II-P supernovae by Smartt, S. J., Eldridge, J. J., Crockett, R. M., Maund, J. R.

“…We present the results of a 10.5-yr, volume-limited (28-Mpc) search for supernova (SN) progenitor stars. In doing so we compile all SNe discovered within this…”
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Nebular spectra of pair-instability supernovae by Jerkstrand, A., Smartt, S. J., Heger, A.

“…If very massive stars (M ≳ 100 M⊙) can form and avoid too strong mass-loss during their evolution, they are predicted to explode as pair-instability supernovae…”
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AT2018kzr: the merger of an oxygen–neon white dwarf and a neutron star or black hole by Gillanders, J H, Sim, S A, Smartt, S J

“…ABSTRACT We present detailed spectroscopic analysis of the extraordinarily fast-evolving transient AT2018kzr. The transient’s observed light curve showed a…”
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Design and Operation of the ATLAS Transient Science Server by Smith, K. W., Smartt, S. J., Young, D. R., Tonry, J. L., Denneau, L., Flewelling, H., Heinze, A. N., Weiland, H. J., Stalder, B., Rest, A., Stubbs, C. W., Anderson, J. P., Chen, T.-W, Clark, P., Do, A., Förster, F., Fulton, M., Gillanders, J., McBrien, O. R., O'Neill, D., Srivastav, S., Wright, D. E.

“…The Asteroid Terrestrial impact Last Alert System (ATLAS) system consists of two 0.5 m Schmidt telescopes with cameras covering 29 square degrees at plate…”
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Constraints on the presence of platinum and gold in the spectra of the kilonova AT2017gfo by Gillanders, J H, McCann, M, Sim, S A, Smartt, S J, Ballance, C P

“…ABSTRACT Binary neutron star mergers are thought to be one of the dominant sites of production for rapid neutron capture elements, including platinum and gold…”
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The nebular spectra of SN 2012aw and constraints on stellar nucleosynthesis from oxygen emission lines by Jerkstrand, A., Smartt, S. J., Fraser, M., Fransson, C., Sollerman, J., Taddia, F., Kotak, R.

“…We present nebular-phase optical and near-infrared spectroscopy of the Type IIP supernova SN 2012aw combined with non-local thermodynamic equilibrium radiative…”
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LONG-DURATION SUPERLUMINOUS SUPERNOVAE AT LATE TIMES by Jerkstrand, A., Smartt, S. J., Inserra, C., Nicholl, M., Chen, T.-W., Krühler, T., Sollerman, J., Taubenberger, S., Gal-Yam, A., Kankare, E., Maguire, K., Fraser, M., Valenti, S., Sullivan, M., Cartier, R., Young, D. R.

“…ABSTRACT Nebular-phase observations and spectral models of Type Ic superluminous supernovae (SLSNe) are presented. LSQ14an and SN 2015bn both display late-time…”
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The host galaxy and late-time evolution of the superluminous supernova PTF12dam by Chen, T.-W., Smartt, S. J., Jerkstrand, A., Nicholl, M., Bresolin, F., Kotak, R., Polshaw, J., Rest, A., Kudritzki, R., Zheng, Z., Elias-Rosa, N., Smith, K., Inserra, C., Wright, D., Kankare, E., Kangas, T., Fraser, M.

“…Superluminous supernovae (SLSNe) of Type Ic have a tendency to occur in faint host galaxies which are likely to have low mass and low metallicity. PTF12dam is…”
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The tidal disruption event AT2017eqx: spectroscopic evolution from hydrogen rich to poor suggests an atmosphere and outflow by Nicholl, M, Blanchard, P K, Berger, E, Gomez, S, Margutti, R, Alexander, K D, Guillochon, J, Leja, J, Chornock, R, Snios, B, Auchettl, K, Bruce, A G, Challis, P, D’Orazio, D J, Drout, M R, Eftekhari, T, Foley, R J, Graur, O, Kilpatrick, C D, Lawrence, A, Piro, A L, Rojas-Bravo, C, Ross, N P, Short, P, Smartt, S J, Smith, K W, Stalder, B

“…ABSTRACT We present and analyse a new tidal disruption event (TDE), AT2017eqx at redshift z = 0.1089, discovered by Pan-STARRS and ATLAS. The position of the…”
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Constraining the physical properties of Type II-Plateau supernovae using nebular phase spectra by Maguire, K., Jerkstrand, A., Smartt, S. J., Fransson, C., Pastorello, A., Benetti, S., Valenti, S., Bufano, F., Leloudas, G.

“…We present a study of the nebular phase spectra of a sample of Type II-Plateau supernovae with identified progenitors or restrictive limits. The evolution of…”
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The VLT FLAMES Survey of Massive Stars: Rotation and Nitrogen Enrichment as the Key to Understanding Massive Star Evolution by Hunter, I, Brott, I, Lennon, D. J, Langer, N, Dufton, P. L, Trundle, C, Smartt, S. J, de Koter, A, Evans, C. J, Ryans, R. S. I

“…Rotation has become an important element in evolutionary models of massive stars, specifically via the prediction of rotational mixing. Here we study a sample…”
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SN 2009md: another faint supernova from a low-mass progenitor by Fraser, M., Ergon, M., Eldridge, J. J., Valenti, S., Pastorello, A., Sollerman, J., Smartt, S. J., Agnoletto, I., Arcavi, I., Benetti, S., Botticella, M.-T., Bufano, F., Campillay, A., Crockett, R. M., Gal-Yam, A., Kankare, E., Leloudas, G., Maguire, K., Mattila, S., Maund, J. R., Salgado, F., Stephens, A., Taubenberger, S., Turatto, M.

“…We present adaptive optics imaging of the core-collapse supernova (SN) 2009md, which we use together with archival Hubble Space Telescope data to identify a…”
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Machine learning for transient discovery in Pan-STARRS1 difference imaging by Wright, D. E., Smartt, S. J., Smith, K. W., Miller, P., Kotak, R., Rest, A., Burgett, W. S., Chambers, K. C., Flewelling, H., Hodapp, K. W., Huber, M., Jedicke, R., Kaiser, N., Metcalfe, N., Price, P. A., Tonry, J. L., Wainscoat, R. J., Waters, C.

“…Efficient identification and follow-up of astronomical transients is hindered by the need for humans to manually select promising candidates from data streams…”
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The Luminous Type Ia Supernova 2022ilv and Its Early Excess Emission by Srivastav, Shubham, Smartt, S. J., Huber, M. E., Dimitriadis, G., Chambers, K. C., Fulton, Michael D., Moore, Thomas, Callan, F. P., Gillanders, James H., Maguire, K., Nicholl, M., Shingles, Luke J., Sim, S. A., Smith, K. W., Anderson, J. P., de Boer, Thomas, Chen, Ting-Wan, Gao, Hua, Young, D. R.

“…Abstract We present observations and analysis of the hostless and luminous Type Ia supernova 2022ilv, illustrating it is part of the 2003fg-like family, often…”
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Early observations of the nearby Type Ia supernova SN 2015F by Cartier, R, Sullivan, M, Firth, R E, Pignata, G, Mazzali, P, Maguire, K, Childress, M J, Arcavi, I, Ashall, C, Bassett, B, Crawford, S M, Frohmaier, C, Galbany, L, Gal-Yam, A, Hosseinzadeh, G, Howell, D A, Inserra, C, Johansson, J, Kasai, E K, McCully, C, Prajs, S, Prentice, S, Schulze, S, Smartt, S J, Smith, K W, Smith, M, Valenti, S, Young, D R

“…We present photometry and time series spectroscopy of the nearby Type Ia supernova (SN Ia) SN 2015F over -16 d to +80 d relative to maximum light, obtained as…”
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SN 2023emq: A Flash-ionized Ibn Supernova with Possible C iii Emission by Pursiainen, M., Leloudas, G., Schulze, S., Charalampopoulos, P., Angus, C. R., Anderson, J. P., Bauer, F., Chen, T.-W., Galbany, L., Gromadzki, M., Gutiérrez, C. P., Inserra, C., Lyman, J., Müller-Bravo, T. E., Nicholl, M., Smartt, S. J., Tartaglia, L., Wiseman, P., Young, D. R.

“…Abstract SN 2023emq is a fast-evolving transient initially classified as a rare Type Icn supernova (SN), interacting with a H- and He-free circumstellar medium…”
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Massive stars exploding in a He-rich circumstellar medium – IV. Transitional Type Ibn supernovae by Pastorello, A., Benetti, S., Brown, P. J., Tsvetkov, D. Y., Inserra, C., Taubenberger, S., Tomasella, L., Fraser, M., Rich, D. J., Botticella, M. T., Bufano, F., Cappellaro, E., Ergon, M., Gorbovskoy, E. S., Harutyunyan, A., Huang, F., Kotak, R., Lipunov, V. M., Magill, L., Miluzio, M., Morrell, N., Ochner, P., Smartt, S. J., Sollerman, J., Spiro, S., Stritzinger, M. D., Turatto, M., Valenti, S., Wang, X., Wright, D. E., Yurkov, V. V., Zampieri, L., Zhang, T.

“…We present ultraviolet, optical and near-infrared data of the Type Ibn supernovae (SNe) 2010al and 2011hw. SN 2010al reaches an absolute magnitude at peak of M…”
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SN 2009jf: a slow-evolving stripped-envelope core-collapse supernova by Valenti, S., Fraser, M., Benetti, S., Pignata, G., Sollerman, J., Inserra, C., Cappellaro, E., Pastorello, A., Smartt, S. J., Ergon, M., Botticella, M. T., Brimacombe, J., Bufano, F., Crockett, M., Eder, I., Fugazza, D., Haislip, J. B, Hamuy, M., Harutyunyan, A., Ivarsen, K. M., Kankare, E., Kotak, R., LaCluyze, A. P., Magill, L., Mattila, S., Maza, J., Mazzali, P. A., Reichart, D. E., Taubenberger, S., Turatto, M., Zampieri, L.

“…We present an extensive set of photometric and spectroscopic data for SN 2009jf, a nearby Type Ib supernova (SN), spanning from ∼20 d before B-band maximum to…”
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A low-energy core-collapse supernova without a hydrogen envelope by Ferrando, R, Turatto, M, Pastorello, A, Nissinen, M, Manteca, J, Benetti, S, Elias-Rosa, N, Harutyunyan, A, Pian, E, Cappellaro, E, Taubenberger, S, Zampieri, L, Mazzali, P. A, Valenti, S, Smartt, S. J, Hentunen, V. P

“…The final fate of massive stars depends on many factors. Theory suggests that some with initial masses greater than 25 to 30 solar masses end up as Wolf-Rayet…”
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