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Interferometric observations of gravitational microlensing events offer an opportunity for precise, efficient, and direct mass and distance measurements of lensing objects, especially those of isolated neutron stars and black holes.…

FIRST, the Fibered Imager foR a Single Telescope instrument, is an ultra-high angular resolution spectro-imager, able to deliver calibrated images and measurements beyond the telescope diffraction limit, a regime that is out of reach for…

The main goal of the REM project is the observation of prompt afterglow of Gamma-Ray Burst (GRB) events. Such observations at Near InfraRed (NIR) wavelengths are even very promising, since they allow to monitor high-z Ly-$\alpha$ absorbed…

The construction of the James Webb Space Telescope has brought attention to infrared astronomy and cosmology. The potential information about our universe to be gained by this mission and future infrared telescopes is staggering, but…

Instrumentation and Methods for Astrophysics · Physics 2014-01-31 Nathan Lenssen

Microlensing observations have now become a useful tool in searching for non--luminous astrophysical compact objects (brown dwarfs, faint stars, neutron stars, black holes and even planets). Originally conceived for establishing whether the…

Astrophysics · Physics 2016-08-30 E. Roulet , S. Mollerach

Low-redshift strong-lensing galaxies can provide robust measurements of the stellar mass-to-light ratios in early-type galaxies (ETG), and hence constrain variations in the stellar initial mass function (IMF). At present, only a few such…

Astrophysics of Galaxies · Physics 2020-03-11 William P. Collier , Russell J. Smith , John R. Lucey

Planetary Radio Interferometry and Doppler Experiment (PRIDE) is a multi-purpose experimental technique aimed at enhancing the science return of planetary missions. The technique exploits the science payload and spacecraft service systems…

Free-floating planets are the remnants of violent dynamical rearrangements of planetary systems. It is possible that even our own solar system ejected a large planet early in its evolution. WFIRST will have the ability to detect…

Gravitational microlensing depends primarily on the lens mass and presents a larger occurrence rate in crowded regions, which makes it the best tool to uncover the initial mass function (IMF) of low-mass stars in the Galactic bulge. The…

The Prime Focus Spectrograph (PFS) is an optical/near-infrared multifiber spectrograph with 2394 science fibers distributed across a 1.3-deg diameter field of view at the Subaru 8.2-m telescope. The wide wavelength coverage from 0.38 {\mu}m…

Instrumentation and Methods for Astrophysics · Physics 2015-07-06 Hajime Sugai , Naoyuki Tamura , Hiroshi Karoji , Atsushi Shimono , Naruhisa Takato , Masahiko Kimura , Youichi Ohyama , Akitoshi Ueda , Hrand Aghazarian , Marcio Vital de Arruda , Robert H. Barkhouser , Charles L. Bennett , Steve Bickerton , Alexandre Bozier , David F. Braun , Khanh Bui , Christopher M. Capocasale , Michael A. Carr , Bruno Castilho , Yin-Chang Chang , Hsin-Yo Chen , Richard C. Y. Chou , Olivia R. Dawson , Richard G. Dekany , Eric M. Ek , Richard S. Ellis , Robin J. English , Didier Ferrand , Décio Ferreira , Charles D. Fisher , Mirek Golebiowski , James E. Gunn , Murdock Hart , Timothy M. Heckman , Paul T. P. Ho , Stephen Hope , Larry E. Hovland , Shu-Fu Hsu , Yen-Shan Hu , Pin Jie Huang , Marc Jaquet , Jennifer E. Karr , Jason G. Kempenaar , Matthew E. King , Olivier Le Fèvre , David Le Mignant , Hung-Hsu Ling , Craig Loomis , Robert H. Lupton , Fabrice Madec , Peter Mao , Lucas Souza Marrara , Brice Ménard , Chaz Morantz , Hitoshi Murayama , Graham J. Murray , Antonio Cesar de Oliveira , Claudia Mendes de Oliveira , Ligia Souza de Oliveira , Joe D. Orndorff , Rodrigo de Paiva Vilaça , Eamon J. Partos , Sandrine Pascal , Thomas Pegot-Ogier , Daniel J. Reiley , Reed Riddle , Leandro Santos , Jesulino Bispo dos Santos , Mark A. Schwochert , Michael D. Seiffert , Stephen A. Smee , Roger M. Smith , Ronald E. Steinkraus , Laerte Sodré , David N. Spergel , Christian Surace , Laurence Tresse , Clément Vidal , Sebastien Vives , Shiang-Yu Wang , Chih-Yi Wen , Amy C. Wu , Rosie Wyse , Chi-Hung Yan

FIRST (Fibered Imager foR a Single Telescope instrument) is a post-AO instrument that enables high contrast imaging and spectroscopy at spatial scales below the diffraction limit. FIRST achieves sensitivity and accuracy by a unique…

Instrumentation and Methods for Astrophysics · Physics 2021-02-15 K. Barjot , E. Huby , S. Vievard , N. Cvetojevic , S. Lacour , G. Martin , V. Deo , V. Lapeyrere , D. Rouan , O. Guyon , J. Lozi , N. Jovanovic , C. Cassagenettes , G. Perrin , F. Marchis , G. Duchêne , T. Kotani

Japan Astrometry Satellite Mission for INfrared Exploration (JASMINE) is a planned M-class science space mission by the Institute of Space and Astronautical Science, the Japan Aerospace Exploration Agency. JASMINE has two main science…

Instrumentation and Methods for Astrophysics · Physics 2024-03-06 Daisuke Kawata , Hajime Kawahara , Naoteru Gouda , Nathan J. Secrest , Ryouhei Kano , Hirokazu Kataza , Naoki Isobe , Ryou Ohsawa , Fumihiko Usui , Yoshiyuki Yamada , Alister W. Graham , Alex R. Pettitt , Hideki Asada , Junichi Baba , Kenji Bekki , Bryan N. Dorland , Michiko Fujii , Akihiko Fukui , Kohei Hattori , Teruyuki Hirano , Takafumi Kamizuka , Shingo Kashima , Norita Kawanaka , Yui Kawashima , Sergei A. Klioner , Takanori Kodama , Naoki Koshimoto , Takayuki Kotani , Masayuki Kuzuhara , Stephen E. Levine , Steven R. Majewski , Kento Masuda , Noriyuki Matsunaga , Kohei Miyakawa , Makoko Miyoshi , Kumiko Morihana , Ryoichi Nishi , Yuta Notsu , Masashi Omiya , Jason Sanders , Ataru Tanikawa , Masahiro Tsujimoto , Taihei Yano , Masataka Aizawa , Ko Arimatsu , Michael Biermann , Celine Boehm , Masashi Chiba , Victor P. Debattista , Ortwin Gerhard , Masayuki Hirabayashi , David Hobbs , Bungo Ikenoue , Hideyuki Izumiura , Carme Jordi , Naoki Kohara , Wolfgang Löffler , Xavier Luri , Ichiro Mase , Andrea Miglio , Kazuhisa Mitsuda , Trent Newswander , Shogo Nishiyama , Yoshiyuki Obuchi , Takafumi Ootsubo , Masami Ouchi , Masanobu Ozaki , Michael Perryman , Timo Prusti , Pau Ramos , Justin I. Read , R. Michael Rich , Ralph Schönrich , Minori Shikauchi , Risa Shimizu , Yoshinori Suematsu , Shotaro Tada , Aoi Takahashi , Takayuki Tatekawa , Daisuke Tatsumi , Takuji Tsujimoto , Toshihiro Tsuzuki , Seitaro Urakawa , Fumihiro Uraguchi , Shin Utsunomiya , Vincent Van Eylen , Floor van Leeuwen , Takehiko Wada , Nicholas A. Walton

The Wide-Field Infrared Survey Telescope (WFIRST) will answer fundamental questions about the evolution of dark energy over time and expand the catalog of known exoplanets into new regions of parameter space. Using a Hubble-sized mirror and…

PLANET (the Probing Lensing Anomalies NETwork) is a worldwide collaboration of astronomers whose primary goal is to monitor microlensing events densely and precisely in order to detect and study anomalies that contain information about…

The Wide Field Infrared Survey Telescope (WFIRST) is expected to detect hundreds of free-floating planets, but it will not be able to measure their masses. However, simultaneous microlensing observations by both Euclid and WFIRST…

Earth and Planetary Astrophysics · Physics 2019-08-14 Etienne Bachelet , Matthew Penny

We present the first space-based microlens parallax measurement of an isolated star. From the striking differences in the lightcurve as seen from Earth and from Spitzer (~1 AU to the West), we infer a projected velocity v_helio,projected ~…

A new 10 meter diameter telescope is being constructed for deployment at the NSF South Pole research station. The telescope is designed for conducting large-area millimeter and sub-millimeter wave surveys of faint, low contrast emission, as…

Achieving a complete picture of galaxy evolution is a primary goal of extragalactic astrophysics. To accomplish this ambitious task, a wealth of multi-wavelength surveys have been devoted to assess the cosmic evolution of the cold gas and…

Astrophysics of Galaxies · Physics 2025-09-03 A. Traina , F. Pozzi , F. Calura , M. Costa , L. Bisigello , C. Gruppioni , L. Barchiesi , I. Delvecchio , L. Vallini , C. Vignali , V. Casasola

The Astro2010 Decadal Survey recommended a Wide Field Infrared Survey Telescope (WFIRST) as its top priority for a new large space mission. As conceived by the decadal survey, WFIRST would carry out a dark energy science program, a…

We present the analysis of the first circumbinary planet microlensing event, OGLE-2007-BLG-349. This event has a strong planetary signal that is best fit with a mass ratio of $q \approx 3.4\times10^{-4}$, but there is an additional signal…