Miniature Exoplanet Radial Velocity Array

Miniature Exoplanet Radial Velocity Array

One of the individual telescopes of the Minerva project
Alternative names	MINiature Exoplanet Radial Velocity Array
Location(s)	Mount Hopkins, Arizona
Coordinates	31°41′18″N110°53′07″W / 31.6884°N 110.8854°W / 31.6884; -110.8854
Website	www.cfa.harvard.edu/minerva/
Location of Miniature Exoplanet Radial Velocity Array
Related media on Commons

A diagram of one of the project's enclosures with two telescopes

The MINiature Exoplanet Radial Velocity Array (MINERVA) is a ground-based robotic dedicated exoplanet observatory. The facility is an array of small-aperture robotic telescopes outfitted for both photometry and high-resolution Doppler spectroscopy located at the U.S. Fred Lawrence Whipple Observatory at Mt. Hopkins, Arizona. ^{[1] [2] [3] [4]} The project's principal investigator is the American astronomer Jason Eastman. ^[1] The telescopes were manufactured by PlaneWave Instruments.

Science objectives

The primary science goal of MINERVA is to discover Earth-like planets in close-in (less than 50-day) orbits around nearby stars, and super-Earths (3-15 times the mass of Earth) in the habitable zones of the closest Sun-like stars. The secondary goal is to look for transits (eclipses) of known and newly discovered extrasolar planets. The unique design of the MINERVA observatory allows the pursuit of both goals simultaneously.

Specifications and status

• Telescopes: Four PlaneWave CDK700, 0.7m telescopes within 2 custom telescope enclosures designed by LCOGT engineers. One MINERVA-Red telescope
• Cameras: 2k × 2k back illuminated CCD with 15  μm pixels offering > 20’ f.o.v.
• Spectrograph: Stabilized, R = 75,000 echelle spectrograph with iodine cell for precise radial velocimetry designed by KiwiStar Optics (a business unit of Callaghan Innovation; a New Zealand government-owned Crown entity).
• Status: Full photometric science operations began in May 2015 at FLWO. The spectrograph was installed Dec 2015.

MINERVA-Red

MINERVA-Red is an echelle spectrograph optimized for the 'deep red', between 800 nm and 900 nm (where M-dwarfs are brightest) with a robotic 0.7 meter telescope. It uses a Fabry-Perot etalon and U/Ne lamp for wavelength calibration. ^{[5] [6]}

See also

• List of extrasolar planets

Other exoplanet search projects

For a complete list see footer "Exoplanet search projects"

• HATNet Project (HAT)
• Kilodegree Extremely Little Telescope (KELT)
• Next-Generation Transit Survey (NGTS)
• Trans-Atlantic Exoplanet Survey (TrES)
• XO Telescope

References

1. "A dedicated Exoplanet Observatory". Harvard . Retrieved 3 February 2016.
2. Gudmundur Stefansson (26 December 2014). "MINERVA: MINiature Exoplanet Radial Velocity Array". Astrobites. Retrieved 3 February 2016.
3. Kristina Hogstrom (16 August 2013). "MINERVA: Using Small, Fully Robotic Telescopes to Search for Habitable-Zone Exoplanets". NASA . Retrieved 3 February 2016.
4. "Earth-hunting, guerilla style". Planetquest JPL/NASA. 6 September 2012. Retrieved 3 February 2016.
5. Sliski, David; Blake, Cullen; Johnson, John A.; Plavchan, Peter; Wittenmyer, Robert A.; Eastman, Jason D.; Barnes, Stuart; Baker, Ashley (2017). "MINERVA-Red: A telescope dedicated to the discovery of planets orbiting the nearest low-mass stars". American Astronomical Society Meeting Abstracts #229. 229: 146.09. Bibcode:2017AAS...22914609S. MINERVA-Red: A telescope dedicated to the discovery of planets orbiting the nearest low-mass stars
6. "MINERVA-Red: An Intensive Survey for Planets Orbiting the Nearest Low-mass Stars to the Sun - Videos | Institute for Advanced Study". 7 October 2015.

External links

• Miniature Exoplanet Radial Velocity Array (MINERVA) I. Design, Commissioning, and First Science Results
• Dr. John Johnson – Lecture: Exoplanetary science and Kepler mission update on YouTube (time 25:01 min.)
• Minerva-Red