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NASA's Interface Region Imaging Spectrograph (IRIS) provides high resolution observations of the solar atmosphere through UV spectroscopy and imaging. Since the launch of IRIS in June 2013, we have conducted systematic observation campaigns…

The upcoming space missions that will characterize exoplanets, such as PLATO and Ariel, will collect huge amounts of data that will need to be complemented with ground-based observations. The aim of the PLATOSpec project is to perform…

The ultraviolet (UV) window has been largely unexplored through balloons for astronomy. We discuss here the development of a compact near-UV spectrograph with fiber optics input for balloon ights. It is a modified Czerny-Turner system built…

Instrumentation and Methods for Astrophysics · Physics 2016-10-03 A. G. Sreejith , Joice Mathew , Mayuresh Sarpotdar , K. Nirmal , S. Ambily , Ajin Prakash , Margarita Safonova , Jayant Murthy

The Visible and Near Infrared (VNIR) is one of the modules of EChO, the Exoplanets Characterization Observatory proposed to ESA for an M-class mission. EChO is aimed to observe planets while transiting by their suns. Then the instrument had…

Instrumentation and Methods for Astrophysics · Physics 2015-06-18 A. Adriani , G. Bellucci , L. Gambicorti , M. Focardi , E. Oliva , M. Farina , A. M. Di Giorgio , F. Santoli , E. Pace , G. Piccioni , G. Filacchione , M. Pancrazzi , A. Tozzi , G. Micela

The World Space Observatory - Ultraviolet (WSO-UV) space telescope is equipped with high dispersion (55,000) spectrographs working in the 1150-3100 {\AA} spectral range. To evaluate the impact of the design on the scientific objectives of…

Instrumentation and Methods for Astrophysics · Physics 2017-06-13 Pablo Marcos-Arenal , Ana I. Gómez de Castro , Belén Perea Abarca , Mikhail Sachkov

The sky-averaged brightness temperature of the 21cm line from neutral hydrogen provides a sensitive probe of the thermal state of the intergalactic medium, particularly before and during Cosmic Dawn and the Epoch of Reionisation. This…

Achieving accurate photometric characterizations of central stars of planetary nebulae (CSPNe) toward the galactic plane is significantly hindered by the high levels of interstellar extinction in these regions. However, near-infrared (NIR)…

Solar and Stellar Astrophysics · Physics 2025-10-03 Dante Minniti , Vasiliki Fragkou , Javier Alonso-García , Daniel Majaess , Arianna Cortesi

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…

Transmission spectroscopy of exoplanets is a tool to characterize rocky planets and explore their habitability. Using the Earth itself as a proxy, we model the atmospheric cross section as a function of wavelength, and show the effect of…

Earth and Planetary Astrophysics · Physics 2017-03-23 Y. Betremieux , L. Kaltenegger

ESA has identified interferometry as one of the major goals of the Horizon 2000+ programme. Infrared interferometers are a highly sensitive astronomical instruments that enable us to observe terrestrial planets around nearby stars. In this…

Astrophysics · Physics 2016-08-16 M. Landgraf , R. Jehn , W. Flury , M. Fridlund , A. Karlsson , A. Léger

JASMINE is a Japanese planned space mission that aims to reveal the formation history of our Galaxy and discover habitable exoEarths. For these objectives, the JASMINE satellite performs high-precision astrometric observations of the…

The search for extrasolar planets has driven rapid advances in instrumentation, resulting in cameras such as SPHERE at the VLT, GPI at Gemini South and SCExAO at Subaru, capable of achieving very high contrast ($\sim10^{6}$) around bright…

Solar and Stellar Astrophysics · Physics 2020-03-18 P. Scicluna , F. Kemper , R. Siebenmorgen , R. Wesson , J. A. D. L. Blommaert , S. Wolf

Transmission spectroscopy has been successfully used from both the ground and in space to characterise the atmospheres of transiting exoplanets. This technique is challenging from the ground because ground-based spectrographs tend not to be…

Earth and Planetary Astrophysics · Physics 2015-06-16 C. M. Copperwheat , P. J. Wheatley , J. Southworth , J. Bento , T. R. Marsh , V. S. Dhillon , J. J. Fortney , S. P. Littlefair , R. Hickman

The SPECtrophotometer for TRansmission spectroscopy of exoplanets (SPECTR) is a new low-resolution optical (3800 {\AA} - 6850 {\AA}) spectrophotometer installed at the Bohyunsan Optical Astronomy Observatory (BOAO) 1.8 m telescope. SPECTR…

Ultrastable lasers serve as the backbone for some of the most advanced scientific experiments today and enable the ability to perform atomic spectroscopy and laser interferometry at the highest levels of precision possible. With the recent…

Instrumentation and Detectors · Physics 2018-10-12 William Loh , Siva Yegnanarayanan , Frederick O'Donnell , Paul W. Juodawlkis

Several payloads for hard X-ray (20-600 keV) imaging with coded aperture telescopes have been developed for balloon flight observations of cosmic x-ray sources. We briefly review the characteristics of these, particularly the EXITE2 system.…

Astrophysics · Physics 2009-10-30 Jonathan E. Grindlay

We use synthetic model spectra to investigate the potential of near-ultraviolet (3000-4050 \r{A}) observations of massive O-type stars. We highlight the He I $\lambda$3188 and He II $\lambda$3203 pair as a potential temperature diagnostic…

Solar and Stellar Astrophysics · Physics 2023-10-30 Chris Evans , Wagner Marcolino , Jean-Claude Bouret , Miriam Garcia
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