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Aims. Quasar strong gravitational lenses are important tools for putting constraints on the dark matter distribution, dark energy contribution, and the Hubble-Lemaitre parameter. We aim to present a new supervised machine learning-based…

The Transiting Exoplanet Survey Satellite (TESS) is focusing on relatively bright stars and has found thousands of planet candidates. However, mainly because of the low spatial resolution of its cameras ($\approx$ 21 arcsec/pixel), TESS is…

The Transiting Exoplanet Survey Satellite (TESS) will observe $\sim$150~million stars brighter than $T_{\rm mag} \approx 16$, with photometric precision from 60~ppm to 3~percent, enabling an array of exoplanet and stellar astrophysics…

Instrumentation and Methods for Astrophysics · Physics 2018-09-05 Ryan J. Oelkers , Keivan G. Stassun

The challenges of high contrast imaging (HCI) for detecting exoplanets for both ground and space applications can be met with extreme adaptive optics (ExAO), a high-order adaptive optics system that performs wavefront sensing (WFS) and…

We present 2,241 exoplanet candidates identified with data from the Transiting Exoplanet Survey Satellite (TESS) during its two-year prime mission. We list these candidates in the TESS Objects of Interest (TOI) Catalog, which includes both…

Earth and Planetary Astrophysics · Physics 2021-06-17 Natalia M. Guerrero , S. Seager , Chelsea X. Huang , Andrew Vanderburg , Aylin Garcia Soto , Ismael Mireles , Katharine Hesse , William Fong , Ana Glidden , Avi Shporer , David W. Latham , Karen A. Collins , Samuel N. Quinn , Jennifer Burt , Diana Dragomir , Ian Crossfield , Roland Vanderspek , Michael Fausnaugh , Christopher J. Burke , George Ricker , Tansu Daylan , Zahra Essack , Maximilian N. Günther , Hugh P. Osborn , Joshua Pepper , Pamela Rowden , Lizhou Sha , Steven Villanueva , Daniel A. Yahalomi , Liang Yu , Sarah Ballard , Natalie M. Batalha , David Berardo , Ashley Chontos , Jason A. Dittmann , Gilbert A. Esquerdo , Thomas Mikal-Evans , Rahul Jayaraman , Akshata Krishnamurthy , Dana R. Louie , Nicholas Mehrle , Prajwal Niraula , Benjamin V. Rackham , Joseph E. Rodriguez , Stephen J. L. Rowden , Clara Sousa-Silva , David Watanabe , Ian Wong , Zhuchang Zhan , Goran Zivanovic , Jessie L. Christiansen , David R. Ciardi , Melanie A. Swain , Michael B. Lund , Susan E. Mullally , Scott W. Fleming , David R. Rodriguez , Patricia T. Boyd , Elisa V. Quintana , Thomas Barclay , Knicole D. Colón , S. A. Rinehart , Joshua E. Schlieder , Mark Clampin , Jon M. Jenkins , Joseph D. Twicken , Douglas A. Caldwell , Jeffrey L. Coughlin , Chris Henze , Jack J. Lissauer , Robert L. Morris , Mark E. Rose , Jeffrey C. Smith , Peter Tenenbaum , Eric B. Ting , Bill Wohler , G. Á. Bakos , Jacob L. Bean , Zachory K. Berta-Thompson , Allyson Bieryla , Luke G. Bouma , Lars A. Buchhave , Nathaniel Butler , David Charbonneau , John P. Doty , Jian Ge , Matthew J. Holman , Andrew W. Howard , Lisa Kaltenegger , Stephen R. Kane , Hans Kjeldsen , Laura Kreidberg , Douglas N. C. Lin , Charlotte Minsky , Norio Narita , Martin Paegert , András Pál , Enric Palle , Dimitar D. Sasselov , Alton Spencer , Alessandro Sozzetti , Keivan G. Stassun , Guillermo Torres , Stephane Udry , Joshua N. Winn

The Gemini Planet Imager (GPI) is an instrument designed for the Gemini South telescope to image young Jupiter-mass planets in the infrared. To achieve the high contrast needed for this, it employs an apodized pupil Lyot coronagraph (APLC)…

Instrumentation and Methods for Astrophysics · Physics 2011-02-11 Eric Cady , Bruce Macintosh , N. Jeremy Kasdin , Remi Soummer

The investigation of the atmospheres of closely separated, directly imaged gas giant exoplanets is challenging due to the presence of stellar speckles that pollute their spectrum. To remedy this, the analysis of medium- to high-resolution…

The KPNO International Spectroscopic Survey (KISS) is a new objective-prism survey for extragalactic emission-line objects. It combines many of the features of previous slitless spectroscopic surveys that were carried out with Schmidt…

An international group of scientists has begun planning for the Planet Formation Imager (PFI, www.planetformationimager.org), a next-generation infrared interferometer array with the primary goal of imaging the active phases of planet…

Instrumentation and Methods for Astrophysics · Physics 2019-07-26 John D. Monnier , 48 endorsers

Cool Planet Imaging Coronagraph (CPI-C) on Chinese Space Station Survey Telescope (CSST) is proposed to direct image the cool planets around nearby solar-type stars (within 40 pc). The core scientific objective of CPI-C is to conduct…

The Gaia-ESO Survey is a large public spectroscopic survey that aims to derive radial velocities and fundamental parameters of about 10^5 Milky Way stars in the field and in clusters. Observations are carried out with the multi-object…

The Planet Formation Imager (PFI) Project is dedicated to defining a next-generation facility that can answer fundamental questions about how planets form, including detection of young giant exoplanets and their circumplanetary disks. The…

Instrumentation and Methods for Astrophysics · Physics 2024-08-08 John D. Monnier , Stefan Kraus , Michael J. Ireland

The growing number of exoplanet discoveries and advances in machine learning techniques have opened new avenues for exploring and understanding the characteristics of worlds beyond our Solar System. In this study, we employ efficient…

Earth and Planetary Astrophysics · Physics 2023-08-29 Mahdiyar Mousavi-Sadr , Davood M. Jassur , Ghassem Gozaliasl

Aims. We present simulations of the perfomances of the future SPHERE IFS instrument designed for imaging extrasolar planets in the near infrared (Y, J, and H bands). Methods. We used the IDL package code for adaptive optics simulation…

Instrumentation and Methods for Astrophysics · Physics 2018-12-05 D. Mesa , R. Gratton , A. Berton , J. Antichi , C. Verinaud , A. Boccaletti , M. Kasper , R. U. Claudi , S. Desidera , E. Giro , J. -L. Beuzit , K. Dohlen , M. Feldt , D. Mouillet , G. Chauvin , A. Vigan

Due to its proximity, youth, and solar-like characteristics with a spectral type of K2V, Eps Eri is one of the most extensively studied systems in an extrasolar planet context. Based on radial velocity, astrometry, and studies of the…

The Planet Formation Imager (PFI) is a project for a very large optical interferometer intended to obtain images of the planet formation process at scales as small as the Hill sphere of giant exoplanets. Its main science instruments will…

Instrumentation and Methods for Astrophysics · Physics 2016-10-27 Romain G. Petrov , Abdelkarim Boskri , Thami Elhalkouj , John Monnier , Michael Ireland , Stefan Kraus

As planning for the next generation of high contrast imaging instruments (e.g. WFIRST, HabEx, and LUVOIR, TMT-PFI, EELT-EPICS) matures, and second-generation ground-based extreme adaptive optics facilities (e.g. VLT-SPHERE, Gemini-GPI) are…

The advent of high-contrast imaging instruments combined with medium-resolution spectrographs allows spectral and temporal dimensions to be combined with spatial dimensions to detect and potentially characterize exoplanets with higher…

Earth and Planetary Astrophysics · Physics 2024-09-11 Rakesh Nath-Ranga , Olivier Absil , Valentin Christiaens , Emily O. Garvin

Our understanding of the dynamics of the interstellar medium is informed by the study of the detailed velocity structure of emission line observations. One approach to study the velocity structure is to decompose the spectra into individual…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 Manuel Riener , Jouni Kainulainen , Jonathan D. Henshaw , Jan H. Orkisz , Claire E. Murray , Henrik Beuther

Contemporary all-sky surveys have observed thousands of extragalactic transients in the nearby universe, and upcoming surveys will discover exponentially more at higher redshifts. With these large samples, population-level analysis of the…

Instrumentation and Methods for Astrophysics · Physics 2026-04-07 C. Pellegrino , T. A. Pritchard , M. Modjaz , A. Crawford , S. Khakpash , F. Bianco