令和7(2025)年度談話会
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開始行:
[[IoA_Seminar]]
#contents
* 講演リスト [#g8648f7a]
** No. 430: July 24, 2025 (Thu) 15:30-16:30 [#dad05fe7]
*** Place: Lecture Room, Institute of Astronomy, Universi...
*** Speaker: Keiichi Ohnaka (Universidad Andrés Bello) [#...
*** Title: Milliarcsecond-resolution near-infrared interf...
Language: English
Abstract: Intense mass loss at the red supergiant phase ...
understanding the evolution of massive stars, particularl...
very early-phase spectra of supernovae (SNe) suggest sign...
increases in mass loss just before the SN explosion. WOH ...
heavily dust-enshrouded red supergiant in the Large Magel...
(LMC) -- the brightest in the mid-IR in the LMC. We present
milliarcsecond-resolution near-IR (2.0--2.45 micron) inte...
imaging of WOH G64 with the GRAVITY instrument at ESO's V...
Telescope Interferometer (VLTI) -- the first close-up ima...
individual star outside the Milky Way. The observed image...
elliptical ring-like structure and more compact, elongate...
emission with a size of ~4 x 2 mas. This elongated emissi...
interpreted as a bipolar outflow or alternatively as a ci...
envelope elongated due to a putative companion. Furthermo...
our visible and near-IR photometric monitoring with the R...
Telescope at La Silla since 2023 and the archival data, w...
significant increase in the circumstellar dust should hav...
some point between 2006 and 2016, perhaps due to episodic...
formation. Interestingly, another recent study reveals th...
star evolved from a red supergiant (3200 K) to a yellow h...
K) in 2014 within a year without an outburst or eruptive ...
discuss ongoing and future observations to understand thi...
that provides a rare opportunity to witness the evolution...
star in real time and study the physics of the extreme ma...
** No. 429: April 17, 2025 (Thu) 15:30-16:30 [#dad05fe7]
*** Place: Lecture Room, Institute of Astronomy, Universi...
*** Speaker: Eduardo Ibar (Universidad de Valparaíso) [#d...
*** Title: The properties of emitting line galaxies disco...
Language: English
Abstract: Recombination lines are some of the best star-...
---------------------------------------------------------...
終了行:
[[IoA_Seminar]]
#contents
* 講演リスト [#g8648f7a]
** No. 430: July 24, 2025 (Thu) 15:30-16:30 [#dad05fe7]
*** Place: Lecture Room, Institute of Astronomy, Universi...
*** Speaker: Keiichi Ohnaka (Universidad Andrés Bello) [#...
*** Title: Milliarcsecond-resolution near-infrared interf...
Language: English
Abstract: Intense mass loss at the red supergiant phase ...
understanding the evolution of massive stars, particularl...
very early-phase spectra of supernovae (SNe) suggest sign...
increases in mass loss just before the SN explosion. WOH ...
heavily dust-enshrouded red supergiant in the Large Magel...
(LMC) -- the brightest in the mid-IR in the LMC. We present
milliarcsecond-resolution near-IR (2.0--2.45 micron) inte...
imaging of WOH G64 with the GRAVITY instrument at ESO's V...
Telescope Interferometer (VLTI) -- the first close-up ima...
individual star outside the Milky Way. The observed image...
elliptical ring-like structure and more compact, elongate...
emission with a size of ~4 x 2 mas. This elongated emissi...
interpreted as a bipolar outflow or alternatively as a ci...
envelope elongated due to a putative companion. Furthermo...
our visible and near-IR photometric monitoring with the R...
Telescope at La Silla since 2023 and the archival data, w...
significant increase in the circumstellar dust should hav...
some point between 2006 and 2016, perhaps due to episodic...
formation. Interestingly, another recent study reveals th...
star evolved from a red supergiant (3200 K) to a yellow h...
K) in 2014 within a year without an outburst or eruptive ...
discuss ongoing and future observations to understand thi...
that provides a rare opportunity to witness the evolution...
star in real time and study the physics of the extreme ma...
** No. 429: April 17, 2025 (Thu) 15:30-16:30 [#dad05fe7]
*** Place: Lecture Room, Institute of Astronomy, Universi...
*** Speaker: Eduardo Ibar (Universidad de Valparaíso) [#d...
*** Title: The properties of emitting line galaxies disco...
Language: English
Abstract: Recombination lines are some of the best star-...
---------------------------------------------------------...
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