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Related papers: On Charon's Far-Ultraviolet Surface Reflectance

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Source I in the Orion-KL nebula is believed to be the nearest example of a massive star still in the main accretion phase. It is thus one of the best cases for studying the properties of massive protostars to constrain high-mass star…

Astrophysics of Galaxies · Physics 2015-05-19 Leonardo Testi , Jonathan C. Tan , Francesco Palla

The first results from a VLT-ISAAC program on L- and M-band infrared spectroscopy of deeply-embedded young stellar objects are presented. The advent of 8-m class telescopes allows high S/N spectra of low-luminosity sources to be obtained.…

X-Shooter is the first second-generation instrument for the ESO-VLT. It as a spectrograph covering the 300 - 2480 nm spectral range at once with a high resolving power. These properties enticed us to observe (136199) Eris during the science…

Earth and Planetary Astrophysics · Physics 2015-05-28 A. Alvarez-Candal , N. Pinilla-Alonso , J. Licandro , J. Cook , E. Mason , T. Roush , D. Cruikshank , F. Gourgeot , E. Dotto , D. Perna

We present the first ultraviolet spectra of Jupiter Trojans. These observations were carried out using the Space Telescope Imaging Spectrograph on the Hubble Space Telescope and cover the wavelength range 200-550 nm at low resolution. The…

Earth and Planetary Astrophysics · Physics 2019-04-17 Ian Wong , Michael E. Brown , Jordana Blacksberg , Bethany L. Ehlmann , Ahmed Mahjoub

We present {\lambda}/{\Delta}{\lambda} ~ 6000 near-infrared spectroscopy of the nearby T9 dwarf, UGPS J072227.51-054031.2, obtained during the commissioning of the Folded-Port Infrared Echellette Spectrograph on the Baade Magellan telescope…

Solar and Stellar Astrophysics · Physics 2015-05-30 John J. Bochanski , Adam J. Burgasser , Robert A. Simcoe , Andrew A. West

Aims. We attempt to detect starlight reflected from the hot Jupiter orbiting the main-sequence star Tau Boo, in order to determine the albedo of the planetary atmosphere, the orbital inclination of the planetary system and the exact mass of…

Solar and Stellar Astrophysics · Physics 2015-05-18 F. Rodler , M. Kuerster , T. Henning

Centaurs with high orbital inclinations and perihelia (i > 60 degrees; q >= 15 au) are a small group of poorly understood minor planets that are predicted to enter the giant planet region of the Solar System from the inner Oort Cloud. As…

Earth and Planetary Astrophysics · Physics 2021-10-28 Tom Seccull , Wesley C. Fraser , Thomas Puzia

We use data from five stellar occultations observed between 2013 and 2016 to constrain Chariklo's size and shape, and the ring reflectivity. We consider four possible models for Chariklo (sphere, Maclaurin spheroid, tri-axial ellipsoid and…

We report far-infrared reflectance measurements on polycrystalline superconducting samples of SmO$_{1-x}$F$_{x}$FeAs ($x$ = 0.12, 0.15 and 0.2). We clearly observe superconductivity induced changes of reflectivity in a broad range of…

Superconductivity · Physics 2008-06-16 S. I. Mirzaei , V. Guritanu , A. B. Kuzmenko , C. Senatore , D. van der Marel , G. Wu , R. H. Liu , X. H. Chen

The COBE Far InfraRed Absolute Spectrophotometer (FIRAS) observations constitute an unbiased survey over the wavelength range from 100 um to 1 cm over 99% of the sky. Improved calibration of the FIRAS instrument and the inclusion of all of…

Astrophysics · Physics 2007-05-23 D. J. Fixsen , C. L. Bennett , J. C. Mather

We report the visible reflection spectrum of the integrated Earth, illuminated as it would be seen as an spatially-unresolved extrasolar planet. The spectrum was derived from observation of lunar earthshine in the range 4800 to 9200…

Astrophysics · Physics 2009-11-07 N. J. Woolf , P. S. Smith , W. A. Traub , K. W. Jucks

We present new high resolution (R=18,000) near-infrared spectroscopic observations of a sample of classical FU Orionis stars (FUors) and other young stars with FUor characteristics that are sources of Herbig-Haro flows. Spectra are…

Astrophysics · Physics 2009-11-13 Tom Greene , Colin Aspin , Bo Reipurth

We used the CRIRES spectrograph on the VLT to study the ro-vibrational 12CO/13CO, the Pfund beta and H2 emission between 4.59 and 4.72mu wavelengths toward the BN object, the disk candidate source n, and a proposed dust density enhancement…

Solar and Stellar Astrophysics · Physics 2015-05-14 H. Beuther , H. Linz , A. Bik. , M. Goto , Th. Henning

We have used the Hubble Space Telescope to directly measure the angular size of the large Kuiper belt object 2003 UB313. By carefully calibrating the point spread function of a nearby field star, we measure the size of 2003 UB313 to be…

Astrophysics · Physics 2009-11-11 M. E. Brown , E. L. Schaller , H. G. Roe , D. L. Rabinowitz , C. A. Trujillo

Thermal infrared observations are the most effective way to measure asteroid diameter and albedo for a large number of near-Earth objects. Major surveys like NEOWISE, NEOSurvey, ExploreNEOs, and NEOLegacy find a small fraction of high…

We have observed unexpected spectral attenuation of ultraviolet light in freshly drawn hollow core optical fibres. When the fibre ends are left open to atmosphere, this loss feature dissipates over time. The loss matches the absorption…

Carbonaceous chondrites (CCs) are windows into the early Solar system and the histories of their parent bodies. Their infrared spectral signatures are powerful proxies for deciphering their composition and evolution history, but still…

Earth and Planetary Astrophysics · Physics 2024-01-23 Jinfei Yu , Haibin Zhao , Edward A. Cloutis , Hiroyuki Kurokawa , Yunzhao Wu

The reflected spectra of extrasolar giant planets are primarily influenced by Rayleigh scattering, molecular absorption, and atmospheric condensates. We present model geometric albedo and phase integral spectra and Bond albedos for planets…

Astrophysics · Physics 2009-10-31 M. S. Marley , C. Gelino , D. Stephens , J. Lunine , R. Freedman

The CHIRON optical high-resolution echelle spectrometer was commissioned at the 1.5m telescope at CTIO in 2011. The instrument was designed for high throughput and stability, with the goal of monitoring radial velocities of bright stars…

Instrumentation and Methods for Astrophysics · Physics 2015-06-17 Andrei Tokovinin , Debra A. Fischer , Marco Bonati , Matthew J. Giguere , Peter Moore , Christian Schwab , Julien F. P. Spronck , Andrew Szymkowiak

Spatially resolved maps of Jupiter's far-infrared 17-37 $\mu$m hydrogen-helium collision-induced spectrum were acquired by the FORCAST instrument on the Stratospheric Observatory for Infrared Astronomy (SOFIA) in May 2014. Spectral scans in…

Earth and Planetary Astrophysics · Physics 2016-10-06 Leigh N. Fletcher , I. de Pater , W. T. Reach , M. Wong , G. S. Orton , P. G. J. Irwin , R. D. Gehrz