RK
R. Kotak
astro-ph.SRastro-ph.HEastro-phastro-ph.COastro-ph.GAastro-ph.IMgr-qcastro-ph.EPcs.CV
On Valency
published · living versionsW_ahvq3aca·v1 · currentpublished
Observations of the luminous red nova AT 2021biy in the nearby galaxy NGC 4631
with Y. -Z. Cai, A. Pastorello, M. Fraser, X. -F. Wang +71
1 version
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Preprints & journals
183 papers in the corpus · 1997–2026The GOTO Telescope Control System2609.18443v1 · Martin J. Dyer, Vik S. Dhillon, Stuart Littlefair et al.2026 · 0 citationsProc. SPIE 14151, Observatory Operations: Strategies, Processes, and Systems XI, 141511H (19 Aug 2026)
SN 2019vxm: A luminous and long-lived Type IIn supernova with early flash-ionisation features2606.30390v1 · Y.-Z. Cai, A. Pastorello, T. J. Moriya et al.2026 · 0 citationsarXiv
Failed jet breakout in the metal-poor broad-lined type Ic supernova 2026gzf2606.10002v1 · Antonio Martin-Carrillo, Christina C. Thone, James K. Leung et al.2026 · 0 citationsarXiv
Early Multiwavelength Observations of AT 2026fgk: The Luminous Afterglow to Sub-luminous GRB 260310A, Identified Independently of a Gamma-ray Trigger2606.05146v1 · K. -R. Hinds, A. Y. Q. Ho, Y. Wagh et al.2026 · 0 citationsarXiv
ENGRAVE follow-up of a type IIb supernova spatially coincident with the sub-threshold gravitational wave trigger S250818k2605.02639v2 · K. Ackley, M. T. Botticella, A. Boye et al.2026 · 0 citationsarXiv
Relative frequencies of core-collapse supernovae as a function of metallicity: observations vs theoretical predictions2604.16230v1 · Claudia P. Guti'errez, Llu'is Galbany, Joseph P. Anderson et al.2026 · 0 citationsA&A 710, A98 (2026)
Time-Domain Photometry and Activity Evolution of Interstellar Comet 3I/ATLAS with BHTOM2603.01383v1 · A. Fraser Gillan, \Lukasz Wyrzykowski, Przemys\law J. Miko\lajczyk et al.2026 · 2 citationsarXiv
The Gravitational-wave Optical Transient Observer (GOTO) data pipeline and workflow for transient discovery2603.02330v2 · J. D. Lyman, D. O'Neill, T. Killestein et al.2026 · 2 citationsarXiv
Euclid: An automated system to match Rubin transient alerts to Euclid observations2602.18173v1 · C. Duffy, I. M. Hook, C. M. Gutierrez et al.2026 · 0 citationsarXiv
GOTO identification and broadband modelling of the counterpart to the SVOM GRB 250818B2602.16559v2 · S. Belkin, G. P. Lamb, K. Ackley et al.2026 · 0 citationsMon Not R Astron Soc (2026)
Multi-messenger and time-domain astronomy in the 2040s2512.14546v1 · Samaya Nissanke, Nikhil Sarin, Chris Copperwheat et al.2025 · 0 citationsarXiv
Giant outbursts of clumpy material preceding Type II supernova 2024qiw2512.07049v1 · T. Nagao, H. Kuncarayakti, K. Maeda et al.2025 · 1 citationA&A 708, A294 (2026)
SN 2024cld: unveiling the complex mass-loss histories of evolved supergiant progenitors to core collapse supernovae2510.27631v2 · T. L. Killestein, M. Pursiainen, R. Kotak et al.2025 · 1 citationarXiv
Discovery and Analysis of Afterglows from Poorly Localised GRBs with the Gravitational-wave Optical Transient Observer (GOTO) All-sky Survey2509.09827v2 · Amit Kumar, B. P. Gompertz, B. Schneider et al.2025 · 2 citationsMNRAS, Volume 544, Issue 2, December 2025, Pages 1541-1587
GRB 241105A: A test case for GRB classification and rapid r-process nucleosynthesis channels2507.15940v2 · Dimple, B. P. Gompertz, A. J. Levan et al.2025 · 5 citationsMon Not R Astron Soc (2025) 548-571
An optical to infrared study of type II SN2024ggi at nebular times2507.05803v2 · Luc Dessart, Rubina Kotak, Wynn Jacobson-Galan et al.2025 · 5 citationsA&A 704, L6 (2025)
Luminous, rapidly declining supernovae as stripped transitional objects in low metallicity environments: the case of SN 2022lxg2506.12135v1 · P. Charalampopoulos, R. Kotak, J. Sollerman et al.2025 · 4 citationsA&A 700, A138 (2025)
SN 2024bfu, SN 2025qe, and the early light curves of type Iax supernovae2506.02118v2 · M. R. Magee, T. L. Killestein, M. Pursiainen et al.2025 · 8 citationsMon Not R Astron Soc (2025) 3731-3753
SN 2023gpw: exploring the diversity and power sources of hydrogen-rich superluminous supernovae2505.17518v2 · Tuomas Kangas, Panos Charalampopoulos, Takashi Nagao et al.2025 · 1 citationA&A 705, A52 (2026)
Explosion sites of SN 1994W-like transients2505.17521v1 · E. Kankare, T. Kangas, M. Fraser et al.2025 · 1 citationarXiv
Euclid: Quick Data Release (Q1) -- Photometric studies of known transients2503.15334v1 · C. Duffy, E. Cappellaro, M. T. Botticella et al.2025 · 0 citationsarXiv
The bright long-lived Type II SN 2021irp powered by aspherical circumstellar material interaction (I): Revealing the energy source with photometry and spectroscopy2501.13619v1 · T. M. Reynolds, T. Nagao, R. Gottumukkala et al.2025 · 6 citationsA&A 702, A212 (2025)
GOTO065054+593624: a 8.5 mag amplitude dwarf nova identified in real time via Kilonova Seekers2501.11524v2 · T. L. Killestein, G. Ramsay, M. Kennedy et al.2025 · 6 citationsA&A 699, A8 (2025)
Optical evolution of AT 2024wpp: the high-velocity outflows in Cow-like transients are consistent with high spherical symmetry2411.03272v2 · M. Pursiainen, T. L. Killestein, H. Kuncarayakti et al.2024 · 13 citationsarXiv
SN 2023tsz: A helium-interaction driven supernova in a very low-mass galaxy2409.14147v1 · B. Warwick, J. Lyman, M. Pursiainen et al.2024 · 7 citationsarXiv
CSS161010: a luminous, fast blue optical transient with broad blueshifted hydrogen lines2408.04698v2 · Claudia P. Guti'errez, Seppo Mattila, Peter Lundqvist et al.2024 · 0 citationsarXiv
A study in scarlet -- I. Photometric properties of a sample of Intermediate Luminosity Red Transients2407.21671v1 · G. Valerin, A. Pastorello, A. Reguitti et al.2024 · 8 citationsA&A 695, A42 (2025)
A study in scarlet -- II. Spectroscopic properties of a sample of Intermediate Luminosity Red Transients2407.21733v1 · G. Valerin, A. Pastorello, E. Mason et al.2024 · 6 citationsA&A 695, A43 (2025)
GERry: A Code to Optimise the Hunt for the Electromagnetic Counter-parts to Gravitational Wave Events2407.18642v2 · David O'Neill, Joseph Lyman, Kendall Ackley et al.2024 · 0 citationsarXiv
Red eminence: The intermediate-luminosity red transient AT 2022fnm2406.02816v1 · S. Moran, R. Kotak, M. Fraser et al.2024 · 4 citationsarXiv
SN 2020pvb: a Type IIn-P supernova with a precursor outburst2402.02924v1 · Nancy Elias-Rosa, Se'an J. Brennan, Stefano Benetti et al.2024 · 10 citationsA&A 686, A13 (2024)
The enigmatic double-peaked stripped-envelope SN 2023aew2401.17423v3 · Tuomas Kangas, Hanindyo Kuncarayakti, Takashi Nagao et al.2024 · 9 citationsA&A 689, A182 (2024)
The fast transient AT 2023clx in the nearby LINER galaxy NGC 3799 as a tidal disruption of a very low-mass star2401.11773v2 · P. Charalampopoulos, R. Kotak, T. Wevers et al.2024 · 20 citationsA&A 689, A350 (2024)
Observations of type Ia supernova SN 2020nlb up to 600 days after explosion, and the distance to M852401.08759v2 · S. C. Williams, R. Kotak, P. Lundqvist et al.2024 · 6 citationsarXiv
Spectropolarimetry of Type II supernovae (II) Intrinsic supernova polarization and its relations with the photometric/spectroscopic properties2308.00996v1 · T. Nagao, F.Patat, A. Cikota et al.2023 · 17 citationsA&A 681, A11 (2024)
Spectropolarimetry of Type II supernovae (I) Sample, observational data and interstellar polarization2307.11455v1 · T. Nagao, S. Mattila, R. Kotak et al.2023 · 0 citationsA&A 678, A43 (2023)
GRB 201015A and the nature of low-luminosity soft gamma-ray bursts2305.14491v1 · M. Patel, B. P. Gompertz, P. T. O'Brien et al.2023 · 13 citationsarXiv
The broad-lined Type-Ic supernova SN 2022xxf with extraordinary two-humped light curves2303.16925v2 · H. Kuncarayakti, J. Sollerman, L. Izzo et al.2023 · 32 citationsA&A 678, A209 (2023)
Spherical symmetry in the kilonova AT2017gfo/GW170817.36792736 · Sneppen, Albert, Watson, Darach, Bauswein, Andreas et al.2023 · 58 citationsNature. 2023;614(7948):436-439
Diversity of dust properties in external galaxies confirmed by polarization signals from Type II supernovae2211.11421v2 · Takashi Nagao, Ferdinando Patat, Keiichi Maeda et al.2022 · 4 citationsarXiv
Measuring the Ejecta Velocities of Type Ia Supernovae from the Pan-STARRS1 Medium Deep Survey2211.06895v2 · Y.-C. Pan, Y.-S. Jheng, D. O. Jones et al.2022 · 13 citationsarXiv
Late-time H/He-poor circumstellar interaction in the type-Ic supernova SN 2021ocs: an exposed oxygen-magnesium layer and extreme stripping of the progenitor2210.01755v2 · H. Kuncarayakti, K. Maeda, L. Dessart et al.2022 · 21 citations2022 ApJL 941 L32
Self-Supervised Clustering on Image-Subtracted Data with Deep-Embedded Self-Organizing Map2209.06375v1 · Y. -L. Mong, K. Ackley, T. L. Killestein et al.2022 · 5 citationsarXiv
The Gravitational-wave Optical Transient Observer (GOTO)2208.14901v1 · Martin J. Dyer, Kendall Ackley, Joe Lyman et al.2022 · 8 citationsProc. SPIE 12182, Ground-based and Airborne Telescopes IX, 121821Y (29 August 2022)
Panning for gold, but finding helium: discovery of the ultra-stripped supernova SN2019wxt from gravitational-wave follow-up observations2208.09000v3 · I. Agudo, L. Amati, T. An et al.2022 · 13 citationsA&A 675, A201 (2023)
Panchromatic evolution of three luminous red novae: Forbidden hugs in pandemic times -- IV2208.02782v2 · A. Pastorello, G. Valerin, M. Fraser et al.2022 · 17 citationsA&A 671, A158 (2023)
Observations of the luminous red nova AT 2021biy in the nearby galaxy NGC 46312207.00734v2 · Y.-Z. Cai, A. Pastorello, M. Fraser et al.2022 · 28 citationsA&A 667, A4 (2022)on Valency
SN 2020wnt: a slow-evolving carbon-rich superluminous supernova with no O II lines and a bumpy light curve2206.01662v2 · C. P. Guti'errez, A. Pastorello, M. Bersten et al.2022 · 20 citationsarXiv
SN 2021foa, a transitional event between a Type IIn (SN 2009ip-like) and a Type Ibn supernova2206.00625v1 · A. Reguitti, A. Pastorello, G. Pignata et al.2022 · 18 citationsA&A 662, L10 (2022)
Euclid: Searching for pair-instability supernovae with the Deep Survey2204.08727v2 · T. J. Moriya, C. Inserra, M. Tanaka et al.2022 · 22 citationsAstronomy & Astrophysics, Volume 666, id.A157, 12 pp. (2022)
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