output
20012022
most citedASASSN-15lh: A Highly Super-Luminous Supernova

203 citations

49 papers

astro-ph.HE2022★ 18 cited

The ASAS-SN Bright Supernova Catalog -- V. 2018-2020

K. D. Neumann, T. W. -S. Holoien, C. S. Kochanek +55

We catalog the 443 bright supernovae discovered by the All-Sky Automated Survey for Supernovae (ASAS-SN) in along with the 519 supernovae recovered by ASAS-SN and 516 a…

astro-ph.SR2021★ 10 cited

Spectroscopic and Photometric Observations of Dwarf Nova Superoutbursts by the 3.8 m Telescope Seimei and the Variable Star Network

Yusuke Tampo, Keisuke Isogai, Naoto Kojiguchi +59

We present spectroscopic and photometric observations of 17 dwarf-nova superoutbursts obtained by KOOLS-IFU mounted on the 3.8 m telescope Seimei at Okayama Observatory of Kyoto Un…

astro-ph.SR2020★ 8 cited

Multi-wavelength photometry during the 2018 superoutburst of the WZ Sge-type dwarf nova EG Cancri

Mariko Kimura, Keisuke Isogai, Taichi Kato +45

We report on the multi-wavelength photometry of the 2018 superoutburst in EG Cnc. We have detected stage A superhumps and long-lasting late-stage superhumps via the optical photome…

astro-ph.HE2018★ 49 cited

The ASAS-SN Bright Supernova Catalog -- IV. 2017

T. W. -S. Holoien, J. S. Brown, P. J. Vallely +41

In this catalog we compile information for all supernovae discovered by the All-Sky Automated Survey for SuperNovae (ASAS-SN) as well as all other bright (), spectr…

astro-ph.SR2018★ 9 cited

On the Nature of Long-Period Dwarf Novae with Rare and Low-Amplitude Outbursts

Mariko Kimura, Taichi Kato, Hiroyuki Maehara +35

There are several peculiar long-period dwarf-nova like objects, which show rare, low-amplitude outbursts with highly ionized emission lines. 1SWASP J162117441254, BD Pav, and V3…

astro-ph.HE2018★ 24 cited

ASASSN-15nx: A luminous Type II supernova with a "perfect" linear decline

Subhash Bose, Subo Dong, C. S. Kochanek +24

We report a luminous Type II supernova, ASASSN-15nx, with a peak luminosity of M_V=-20 mag, that is between typical core-collapse supernovae and super-luminous supernovae. The post…

astro-ph.SR2018★ 18 cited

ASASSN-16dt and ASASSN-16hg: Promising Candidates for a Period Bouncer

Mariko Kimura, Keisuke Isogai, Taichi Kato +13

We present optical photometry of superoutbursts in 2016 of two WZ Sge-type dwarf novae (DNe), ASASSN-16dt and ASASSN-16hg. Their light curves showed a dip in brightness between the…

astro-ph.SR2018★ 36 cited

Breaking the habit - the peculiar 2016 eruption of the unique recurrent nova M31N 2008-12a

M. Henze, M. J. Darnley, S. C. Williams +70

Since its discovery in 2008, the Andromeda galaxy nova M31N 2008-12a has been observed in eruption every single year. This unprecedented frequency indicates an extreme object, with…

astro-ph.HE2017★ 18 cited

The Highly Luminous Type Ibn Supernova ASASSN-14ms

P. J. Vallely, J. L. Prieto, K. Z. Stanek +16

We present photometric and spectroscopic follow-up observations of the highly luminous Type Ibn supernova ASASSN-14ms, which was discovered on UT 2014-12-26.61 at .…

astro-ph.HE2017★ 62 cited

The ASAS-SN Bright Supernova Catalog -- III. 2016

T. W. -S. Holoien, J. S. Brown, K. Z. Stanek +36

This catalog summarizes information for all supernovae discovered by the All-Sky Automated Survey for SuperNovae (ASAS-SN) and all other bright (), spectroscopicall…

astro-ph.SR2017★ 2 cited

OT J002656.6+284933 (CSS101212:002657+284933): An SU UMa-Type Dwarf Nova with Longest Superhump Period

Taichi Kato, Tamas Tordai, Colin Littlefield +17

We observed the 2016 outburst of OT J002656.6+284933 (CSS101212:002657+284933) and found that it has the longest recorded [0.13225(1) d in average] superhumps among SU UMa-type dwa…

astro-ph.SR2016★ 34 cited

Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae. VIII: The Eighth Year (2015-2016)

Taichi Kato, Franz-Josef Hambsch, Berto Monard +75

Continuing the project described by Kato et al. (2009, arXiv:0905.1757), we collected times of superhump maxima for 128 SU UMa-type dwarf novae observed mainly during the 2015-2016…

astro-ph.SR2016★ 13 cited

Superoutburst of CR Bootis: Estimation of Mass Ratio of a typical AM CVn star by Stage A Superhumps

Keisuke Isogai, Taichi Kato, Tomohito Ohshima +31

We report on two superoutbursts of the AM CVn-type object CR Boo in 2014 April--March and 2015 May--June. A precursor outburst acompanied both of these superoutbursts. During the r…

astro-ph.SR2016★ 15 cited

ASASSN-15jd: WZ Sge-type star with intermediate superoutburst between single and double ones

Mariko Kimura, Keisuke Isogai, Taichi Kato +21

We present optical photometry of a WZ Sge-type dwarf nova (DN), ASASSN-15jd. Its light curve showed a small dip in the middle of the superoutburst in 2015 for the first time among…

astro-ph.SR2016★ 4 cited

PM J03338+3320: Long-Period Superhumps in Growing Phase Following a Separate Precursor Outburst

Taichi Kato, Enrique de Miguel, William Stein +12

We observed the first-ever recorded outburst of PM J03338+3320, the cataclysmic variable selected by proper-motion survey. The outburst was composed of a precursor and the main sup…

astro-ph.HE2016★ 68 cited

The ASAS-SN Bright Supernova Catalog I. 20132014

T. W. -S. Holoien, K. Z. Stanek, C. S. Kochanek +32

We present basic statistics for all supernovae discovered by the All-Sky Automated Survey for SuperNovae (ASAS-SN) during its first year-and-a-half of operations, spanning 2013 and…

astro-ph.SR2015★ 22 cited

V1006 Cygni: Dwarf Nova Showing Three Types of Outbursts and Simulating Some Features of the WZ Sge-Type Behavior

Taichi Kato, Elena P. Pavlenko, Alisa V. Shchurova +17

We observed the 2015 July-August long outburst of V1006 Cyg and established this object to be an SU UMa-type dwarf nova in the period gap. Our observations have confirmed that V100…

astro-ph.SR2015★ 16 cited

Unexpected Superoutburst and Rebrightening of AL Comae Berenices in 2015

Mariko Kimura, Taichi Kato, Akira Imada +10

In 2015 March, the notable WZ Sge-type dwarf nova AL Com exhibited an unusual outburst with a recurrence time of 1.5 yr, which is the shortest interval of superoutbursts am…

astro-ph.SR2015★ 31 cited

Massive stars exploding in a He-rich circumstellar medium - VII. The metamorphosis of ASASSN-15ed from a narrow line Type Ibn to a normal Type Ib Supernova

A. Pastorello, J. L. Prieto, N. Elias-Rosa +39

We present the results of the spectroscopic and photometric monitoring campaign of ASASSN-15ed. The transient was discovered quite young by the All Sky Automated Survey for SuperNo…

astro-ph.SR2015★ 51 cited

Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae. VII: The Seventh Year (2014-2015)

Taichi Kato, Franz-Josef Hambsch, Pavol A. Dubovsky +89

Continuing the project described by Kato et al. (2009, arXiv:0905.1757), we collected times of superhump maxima for 102 SU UMa-type dwarf novae observed mainly during the 2014-2015…

astro-ph.CO2015★ 77 cited

The Young and Bright Type Ia Supernova ASASSN-14lp: Discovery, Early-Time Observations, First-Light Time, Distance to NGC 4666, and Progenitor Constraints

B. J. Shappee, A. L. Piro, T. W. -S. Holoien +29

On 2014 Dec. 9.61, the All-Sky Automated Survey for SuperNovae (ASAS-SN or "Assassin") discovered ASASSN-14lp just days after first light using a global array of 14-cm diam…

astro-ph.HE2015★ 203 cited

ASASSN-15lh: A Highly Super-Luminous Supernova

Subo Dong, B. J. Shappee, J. L. Prieto +27

We report the discovery of ASASSN-15lh (SN 2015L), which we interpret as the most luminous supernova yet found. At redshift z = 0.2326, ASASSN-15lh reached an absolute magnitude of…

astro-ph.SR2015★ 49 cited

A remarkable recurrent nova in M31: Discovery and optical/UV observations of the predicted 2014 eruption

M. J. Darnley, M. Henze, I. A. Steele +20

The Andromeda Galaxy recurrent nova M31N 2008-12a had been caught in eruption eight times. The inter-eruption period of M31N 2008-12a is ~1 year, making it the most rapidly recurri…

astro-ph.SR2013★ 54 cited

Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae. V: The Fifth Year (2012-2013)

Taichi Kato, Franz-Josef Hambsch, Hiroyuki Maehara +84

Continuing the project described by Kato et al. (2009a, arXiv:0905.1757), we collected times of superhump maxima for SU UMa-type dwarf novae mainly observed during the 2012-2013 se…