ESPRESSO: The Decisive Spectrograph to Find Planets Like Earth

[@TheExoplanetsChannel]

*Around which stars would you search for exoplanets with ESPRESSO if you had access to the instrument? Why?* (comment in a separate thread if you want others to better see your reply)

[@suthinscientist9801]

Awww

[@geemanbmw]

Another amazing and informative video. Thank you!

[@Buzzcronym]

The low-mass star TRAPPIST-1 is where I’d start. It’s only 39 light years from Earth and has 3 planets in the habitable zone. It’s close proximity will make the spectroscopic observations easier.

[@ReflectiveLayerFilm]

What's really amazing is how physically stable these instrument have to be when they are collecting data.

[@suthinscientist9801]

The two planetary systems I'd focus that thing on would be the Proxima Centauri system and the Trappist system. They're close by interstellar standards and look really promising.

[@MaddEndd]

CHEOPS just launched a few days ago. While it wont find new exoplanets its mission is just as interesting.

[@privateerburrows]

Eridani. To put the question of Vulcan to rest. :-) And then all the G and K stars.

[@englishgrammar3298]

HARPs can in theory get down to 30 cm/s but I think that is only in the most ideal of circumstances because so far HARPs has not had any planets confirmed below about 60 cm/s. Therefore perhaps, VLT ESPRESSO won’t be able to measure below 20 cm/s and so just isn’t capable of detecting Earth-like planets in the habitable zones of Sun-like stars. We might have to wait another decade for the ELT CODEX. Even then, if the Earth-like planet is orbiting eccentrically, and/or towards the outer edge of the habitable zone, it could still go undetected.

[@jennyjones.]

👍

[@Tadesan]

Belocity