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Related papers: The need for single-mode fiber-fed spectrographs

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We derive analytic estimates for the ability with which one can obtain precise, empirical stellar masses and radii via single-lined eclipsing binaries (EBs) in the era of {\it Gaia\/} and {\it TESS}. Including stars that host transiting…

Solar and Stellar Astrophysics · Physics 2018-08-08 Daniel J. Stevens , B. Scott Gaudi , Keivan G. Stassun

The ubiquity of M dwarf stars combined with their low masses and luminosities make them prime targets in the search for nearby, habitable exoplanets. We investigate the effects of starspot-induced radial velocity (RV) jitter on detection…

Solar and Stellar Astrophysics · Physics 2015-06-23 Jan Marie Andersen , Heidi Korhonen

Radial velocities (RV) measured from near-infrared (NIR) spectra are a potentially excellent tool to search for extrasolar planets around cool or active stars. High resolution infrared (IR) spectrographs now available are reaching the high…

Instrumentation and Methods for Astrophysics · Physics 2016-04-07 I. Carleo , N. Sanna , R. Gratton , S. Benatti , M. Bonavita , E. Oliva , L. Origlia , S. Desidera , R. Claudi , E. Sissa

The Gaia mission is designed as a Galaxy explorer, and will measure simultaneously, in a survey mode, the five or six phase space parameters of all stars brighter than 20th magnitude, as well as providing a description of their…

The Rossiter-McLaughlin (RM) effect is the distortion of stellar spectral lines that occurs during eclipses or transits, due to stellar rotation. We assess the future prospects for using the RM effect to measure the alignment of planetary…

Astrophysics · Physics 2008-11-26 B. Scott Gaudi , Joshua N. Winn

Microlensing experiments are returning increasingly detailed information about the planetary and binary systems that are being detected, far beyond what was originally expected. In several cases the lens mass and distance are measured, and…

Earth and Planetary Astrophysics · Physics 2015-06-12 Andrew Gould , In-Gu Shin , Cheongho Han , Andrzej Udalski , Jennifer C. Yee

With dedicated exoplanet surveys underway for multiple extreme precision radial velocity (EPRV) instruments, the near-future prospects of RV exoplanet science are promising. These surveys' generous time allocations are expected to…

Earth and Planetary Astrophysics · Physics 2024-06-26 Arvind F. Gupta , Megan Bedell

A space telescope capable of high-contrast imaging has been recognized as the avenue toward finding terrestrial planets around nearby Sun-like stars and characterizing their potential habitability. It is thus essential to quantify the…

Earth and Planetary Astrophysics · Physics 2022-06-01 Mario Damiano , Renyu Hu

Even though it was not designed as an exoplanetary research mission, the Deep Space Climate Observatory (DSCOVR) has been opportunistically used for a novel experiment, in which Earth serves as a proxy exoplanet. More than two years of…

Earth and Planetary Astrophysics · Physics 2018-07-11 Jonathan H. Jiang , Albert J. Zhai , Jay Herman , Chengxing Zhai , Renyu Hu , Hui Su , Vijay Natraj , Jiazheng Li , Feng Xu , Yuk L. Yung

Radial-velocity (RV) signals induce RV variations an order of magnitude larger than the signal created by the orbit of Earth-twins, thus preventing their detection. The goal of this paper is to compare the efficiency of the different…

PARAS is a fiber-fed stabilized high-resolution cross-dispersed echelle spectrograph, located on the 1.2 m telescope in Mt. Abu India. Designed for exoplanet detection, PARAS is capable of single-shot spectral coverage of 3800 - 9600 A, and…

Instrumentation and Methods for Astrophysics · Physics 2016-08-24 Arpita Roy , Abhijit Chakraborty , Suvrath Mahadevan , Priyanka Chaturvedi , Neelam J. S. S. V. Prasad , Vishal Shah , F. M. Pathan , B. G. Anandarao

High-resolution Doppler-resolved spectroscopy has presented new opportunities for studying the atmospheres of exoplanets. While the 'classical' cross-correlation approach has proven to be efficient at finding atmospheric species, it is…

Earth and Planetary Astrophysics · Physics 2022-01-26 Neale P. Gibson , Stevanus K. Nugroho , Joshua Lothringer , Cathal Maguire , David K. Sing

Context. Detailed characterizations of exoplanets are moving to the forefront of planetary science. Temperature is a key marker for understanding atmospheric physics and chemistry. Aims. We aim to retrieve temperatures of N2-O2 dominated…

Earth and Planetary Astrophysics · Physics 2019-12-23 Franz Schreier , Steffen Städt , Fabian Wunderlich , Mareike Godolt , John Lee Grenfell

The Mid-Infrared Instrument (MIRI)'s Medium Resolution Spectrometer (the MRS) on JWST has potentially important advantages for transit and eclipse spectroscopy of exoplanets, including lack of saturation for bright host stars, wavelength…

With the advent of high-resolution infrared spectrographs, Radial Velocity (RV) searches enter into a new domain. As of today, the most important technical question to address is which wavelength reference is the most suitable for…

Earth and Planetary Astrophysics · Physics 2015-05-14 P. Figueira , F. Pepe , C. H. F. Melo , N. C. Santos , C. Lovis , M. Mayor , D. Queloz , A. Smette , S. Udry

The precision of radial velocity (RV) measurements to detect indirectly planetary companions of nearby stars has improved to enable the discovery of extrasolar planets in the Neptune and Super-Earth mass range. Discoveries of Earth-like…

Astrophysics · Physics 2009-11-13 Michael Endl , Martin Kuerster

High contrast direct imaging of exoplanets can provide many important observables, including measurements of the orbit, spectra that probe the lower layers of the atmosphere, and phase variations of the planet, but cannot directly measure…

Earth and Planetary Astrophysics · Physics 2020-06-10 Christopher C. Stark , Courtney Dressing , Shannon Dulz , Eric Lopez , Mark S. Marley , Peter Plavchan , Johannes Sahlmann

Spectroscopic observations are a crucial step in driving major discoveries in the era of time-domain surveys. However, the pace of current spectroscopic surveys is increasingly unable to meet the demands of rapidly advancing large-scale…

Stellar activity contamination of radial velocity (RV) data is one of the top challenges plaguing the field of extreme precision RV (EPRV) science. Previous work has shown that photometry can be very effective at removing such signals from…

Today's most detailed characterization of exoplanet atmospheres is accessible via transit spectroscopy (TS). Detecting transiting exoplanets only yields their size, and it is thus standard to measure a planet's mass before moving towards…

Earth and Planetary Astrophysics · Physics 2025-10-01 Julien de Wit , Sara Seager , Prajwal Niraula
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