Hubbry Logo
search
logo
296383

Large Ultraviolet Optical Infrared Surveyor

logo
Community Hub0 Subscribers
Write something...
Be the first to start a discussion here.
Be the first to start a discussion here.
See all
Large Ultraviolet Optical Infrared Surveyor

The Large Ultraviolet Optical Infrared Surveyor, commonly known as LUVOIR (/lˈvwɑːr/), is a multi-wavelength space telescope concept being developed by NASA under the leadership of a Science and Technology Definition Team. It was one of four large astrophysics space mission concepts studied in preparation for the National Academy of Sciences 2020 Astronomy and Astrophysics Decadal Survey.

While LUVOIR is a concept for a general-purpose observatory, it has the key science goal of characterizing a wide range of exoplanets, including those that might be habitable. An additional goal is to enable a broad range of astrophysics, from the reionization epoch, through galaxy formation and evolution, to star and planet formation. Powerful imaging and spectroscopy observations of Solar System bodies would also be possible.

LUVOIR would be a Large Strategic Science Mission and was considered for a development start sometime in the 2020s. The LUVOIR Study Team, under Study Scientist Aki Roberge, has produced designs for two variants of LUVOIR: one with a 15.1 m diameter telescope mirror (LUVOIR-A) and one with an 8 m diameter mirror (LUVOIR-B). LUVOIR would be able to observe ultraviolet, visible, and near-infrared wavelengths of light. The Final Report on the 5-year LUVOIR mission concept study was publicly released on 26 August 2019.

On 4 November 2021, the 2020 Astrophysics Decadal Survey recommended development of a "large (~6 m aperture) infrared/optical/ultraviolet (IR/O/UV) space telescope", with the science goals of searching for signatures of life on planets outside of the Solar System and enabling a wide range of transformative astrophysics. Such a mission draws upon both the LUVOIR and HabEx mission concepts.

In 2016, NASA began considering four different space telescope concepts for future Large Strategic Science Missions. They are the Habitable Exoplanet Imaging Mission (HabEx), Large Ultraviolet Optical Infrared Surveyor (LUVOIR), Lynx X-ray Observatory (Lynx), and Origins Space Telescope (OST). In 2019, the four teams turned in their final reports to the National Academy of Sciences, whose independent Decadal survey committee advises NASA on which mission should take top priority. If funded, LUVOIR would launch in approximately 2039 using a heavy launch vehicle, and it would be placed in an orbit around the Sun–Earth Lagrange point 2.

LUVOIR's main goals are to investigate exoplanets, cosmic origins, and the Solar System. LUVOIR would be able to analyze the structure and composition of exoplanet atmospheres and surfaces. It could also detect biosignatures arising from life in the atmosphere of a distant exoplanet. Atmospheric biosignatures of interest include CO
2
, CO, molecular oxygen (O
2
), ozone (O
3
), water (H
2
O
), and methane (CH
4
). LUVOIR's multi-wavelength capability would also provide key information to help understand how a host star's UV radiation regulates the atmospheric photochemistry on habitable planets. LUVOIR will also observe large numbers of exoplanets spanning a wide range of characteristics (mass, host star type, age, etc.), with the goal of placing the Solar System in a broader context of planetary systems. Over its five-year primary mission, LUVOIR-A is expected to identify and study 54 potentially habitable exoplanets, while LUVOIR-B is expected to identify 28.

The scope of astrophysics investigations include explorations of cosmic structure in the far reaches of space and time, formation and evolution of galaxies, and the birth of stars and planetary systems.

In the area of Solar System studies, LUVOIR can provide up to about 25 km imaging resolution in visible light at Jupiter, permitting detailed monitoring of atmospheric dynamics in Jupiter, Saturn, Uranus, and Neptune over long timescales. Sensitive, high resolution imaging and spectroscopy of Solar System comets, asteroids, moons, and Kuiper Belt objects that will not be visited by spacecraft in the foreseeable future can provide vital information on the processes that formed the Solar System ages ago. Furthermore, LUVOIR has an important role to play by studying plumes from the ocean moons of the outer Solar System, in particular Europa and Enceladus, over long timescales.

See all
User Avatar
No comments yet.