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We report 370 measures of 170 components of binary and multiple star systems, obtained from speckle imaging observations made with the Differential Speckle Survey Instrument at Lowell Observatory's Discovery Channel Telescope in 2015…

In this paper, we present a catalogue of the spectra of bright stars observed during the sky survey using the Far-Ultraviolet Imaging Spectrograph (FIMS), which was designed primarily to observe diffuse emissions. By carefully eliminating…

Astrophysics of Galaxies · Physics 2015-12-23 Young-Soo Jo , Kwang-Il Seon , Kyoung-Wook Min , Yeon-Ju Choi , Tae-Ho Lim , Yeo-Myeong Lim , Jerry Edelstein , Wonyong Han

This paper is the second in a pair of articles presenting data release 1 (DR1) of the Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS), the largest single open-time key project carried out with the Herschel Space Observatory.…

We present a new sample of 415 bright QSOs and Seyfert~1 nuclei drawn from the Hamburg/ESO survey (HES). The sample is spectroscopically 99 % complete and well-defined in terms of flux and redshift limits. Optical magnitudes are in the…

Astrophysics · Physics 2007-05-23 L. Wisotzki , N. Christlieb , N. Bade , V. Beckmann , T. Koehler , C. Vanelle , D. Reimers

We present the results of a spectroscopic search for close binaries among horizontal branch (HB) stars in NGC6752. We used the ESO VLT-FORS2 instrument to obtain medium resolution (R=4100) spectra of 51 hot HB stars with 8000 < Teff < 32000…

Astrophysics · Physics 2009-11-11 C. Moni Bidin , S. Moehler , G. Piotto , A. Recio-Blanco , Y. Momany , R. A. Mendez

The INT Photometric Halpha Survey of the Northern Galactic Plane (IPHAS) is a 1800 square degrees CCD survey of the northern Milky Way spanning the latitude range -5 < b < +5 (degrees) and reaching down to r' ~ 20 (10-sigma). It may…

Astrophysics · Physics 2009-11-13 Janet E. Drew , R. Greimel , M. J. Irwin , IPHAS collaboration

We introduce a Bayesian method for fitting faint, resolved stellar spectra in order to obtain simultaneous estimates of redshift and stellar-atmospheric parameters. We apply the method to thousands of spectra---covering 5160-5280 Angs. at…

Astrophysics of Galaxies · Physics 2015-06-24 Matthew G. Walker , Edward W. Olszewski , Mario Mateo

We present a high quality multiwavelength (from 0.3 to 8.0 micron) catalog of the large and deep area in the GOODS Southern Field covered by the deep near-IR observations obtained with the ESO VLT. The catalog is entirely based on public…

We present a comprehensive set of physical and geometrical parameters for each of the components of the close visual binary system Hip 11253 (HD14874). We present an analysis for the binary and multiple stellar systems with the aim to…

Solar and Stellar Astrophysics · Physics 2023-06-28 Hussam Aljboor , Ali Taani

The High Energy Stereoscopic System (H.E.S.S.) is an array of four imaging atmospheric-Cherenkov telescopes located in Namibia and designed to detect extensive air showers initiated by gamma-rays in the very-high-energy domain. It is an…

A complete periodic star extraction and classification scheme is set up and tested with the Hipparcos catalogue. The efficiency of each step is derived by comparing the results with prior knowledge coming from the catalogue or from the…

We report observations of the transiting extrasolar planet, HD 209458 b, designed to detect the secondary eclipse. We employ the method of `occultation spectroscopy', which searches in combined light (star and planet) for the disappearance…

Astrophysics · Physics 2009-11-10 L. Jeremy Richardson , Drake Deming , Sara Seager

The Astro2020 Decadal Survey declared that the baryon cycle is one of the top-priority science topics for current astrophysics. Space instruments with both high spectral resolution and high throughput in the ultraviolet are required for…

Instrumentation and Methods for Astrophysics · Physics 2025-04-02 Jeffrey L. Linsky , Todd M. Tripp , Seth Redfield , Kevin France

The Legacy ExtraGalactic UV Survey (LEGUS) is a Cycle 21 Treasury program on the Hubble Space Telescope, aimed at the investigation of star formation and its relation with galactic environment in nearby galaxies, from the scales of…

We present an algorithm to search for the faint spectrum of a second star mixed with the spectrum of a brighter star in high resolution spectra. We model optical stellar spectra as the sum of two input spectra drawn from a vast library of…

Solar and Stellar Astrophysics · Physics 2014-12-18 Rea Kolbl , Geoffrey W. Marcy , Howard Isaacson , Andrew W. Howard

The 2.34m Vainu Bappu Telescope (VBT) is a reflecting telescope that operates in two modes, prime focus and cassegrain focus, and is equipped with two instruments. In prime focus mode, the telescope has the F-number of f/3.25, and the…

Instrumentation and Methods for Astrophysics · Physics 2024-06-25 Nitish Singh , S. Sriram , Bharat Kumar Yerra , Prasanna G. Deshmukh

The KPNO International Spectroscopic Survey (KISS) is an objective-prism survey for extragalactic emission-line objects. It combines many of the features of previous slitless spectroscopic surveys with the advantages of modern CCD…

Astrophysics · Physics 2009-11-10 C. Gronwall , J. Salzer , V. Sarajedini , A. Jangren , L. Chomiuk , J. Moody , L. Frattare , T. Boroson

The Event Horizon Telescope (EHT) is a very long baseline interferometry (VLBI) array that comprises millimeter- and submillimeter-wavelength telescopes separated by distances comparable to the diameter of the Earth. At a nominal operating…

Instrumentation and Methods for Astrophysics · Physics 2019-07-08 The Event Horizon Telescope Collaboration

The Hundred-deg$^2$ HI Deep (HD$^2$) survey carried out with the Five-hundred-meter Aperture Spherical Telescope (FAST) is planned to map a contiguous region within the DESI DR1 footprint, achieving an effective integration time of 20…

We present the Brera Multi-scale Wavelet ROSAT HRI source catalogue (BMW-HRI) derived from all ROSAT HRI pointed observations with exposure time longer than 100 s available in the ROSAT public archives. The data were analyzed automatically…

Astrophysics · Physics 2008-11-26 M. R. Panzera , S. Campana , S. Covino , D. Lazzati , R. P. Mignani , A. Moretti , G. Tagliaferri
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