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M dwarfs, planets, and their atmospheres

Institut d'Astrophysique de Paris
29.2K subscribers
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551 views 4 years ago
IAP weekly specialised seminars / Friday 5 March 2021: Ansgar Reiners (Institut für Astrophysik Göttingen, Georg-August-Universität Göttingen, Göttingen, Allemagne) The CARMENES consortium built two high-resolution spectrographs for the visual (VIS) and near-infrared (NIR) wavelength ranges that are in operation at Calar Alto's 3.6m telescope since Jan 2016. CARMENES opened the view to detailed M dwarf spectroscopy and is carrying out a program to search for planets around 300 low-mass stars. After obtaining more than 19,000 spectra, results include the discovery of numerous nearby Super-Earths, including two in the habitable zone around one of the lowest mass stars, the study of planetary atmospheres, stellar magnetism and activity, and fundamental work on low-mass star parameters and high-resolution methodologies. ...more
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Intro

0:00

M dwarfs, planets, and their atmospheres results from the CARMENES project

1:34

There's a lot of discovery space in M dwarfs

9:44

Main program is an M dwarf survey in 300 stars

20:06

GI 486 b: Top candidate for atmospheric investigation

24:52

CARMENES planets are reaching down to the lowest-mass stars

34:17

GJ 3512 b: Giant exoplanet orbiting a very low mass star

39:27

Ground-based NIR observations are extremely

44:58

Ground based data show planetary Ha and water

46:40

Starspots (and transiting planets) affect radial velocities

48:39

CARMENES measures magnetic fields

51:39
M dwarfs, planets, and their atmospheres
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551Views
2021Mar 5
IAP weekly specialised seminars / Friday 5 March 2021: Ansgar Reiners (Institut für Astrophysik Göttingen, Georg-August-Universität Göttingen, Göttingen, Allemagne) The CARMENES consortium built two high-resolution spectrographs for the visual (VIS) and near-infrared (NIR) wavelength ranges that are in operation at Calar Alto's 3.6m telescope since Jan 2016. CARMENES opened the view to detailed M dwarf spectroscopy and is carrying out a program to search for planets around 300 low-mass stars. After obtaining more than 19,000 spectra, results include the discovery of numerous nearby Super-Earths, including two in the habitable zone around one of the lowest mass stars, the study of planetary atmospheres, stellar magnetism and activity, and fundamental work on low-mass star parameters and high-resolution methodologies.

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Institut d'Astrophysique de Paris

29.2K subscribers