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Related papers: A Radio Counterpart to a Jupiter-Mass Binary Objec…

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JWST/NIRCam observations in the North Ecliptic Pole Time Domain Field (TDF) identify 4.4 micron counterparts for 206 of 211 radio sources with S(3 GHz) \gapprox 5 micro-Jy in a 65arcmin^2 field. One of the remaining radio sources is likely…

We present Karl G. Janksy Very Large Array (VLA) 1.3 cm, 3.6 cm, and 6 cm continuum maps of compact radio sources in the Orion Nebular Cluster. We mosaicked 34 square arcminutes at 1.3 cm, 70 square arcminutes at 3.6 cm and 109 square…

Astrophysics of Galaxies · Physics 2016-11-15 Patrick D. Sheehan , Josh A. Eisner , Rita K. Mann , Jonathan P. Williams

We studied the central region of bipolar nebula M\,2-9 using radio-continuum observations obtained from the Jansky Very Large Array (JVLA) and the Atacama Large Millimeter Array (ALMA) interferometers. This work presents new images at…

Astrophysics of Galaxies · Physics 2022-06-08 Eduardo de la Fuente , Miguel A. Trinidad , Daniel Tafoya , Ivan Toldeano-Juarez , Samuel Garcia-Flores

We present the results of a binary population study in the Orion Nebula Cluster (ONC) using archival Hubble Space Telescope (HST) data obtained with the Advanced Camera for Surveys (ACS) in Johnson V filter (HST Proposal 10246, PI M.…

Solar and Stellar Astrophysics · Physics 2020-01-08 Matthew De Furio , Megan Reiter , Michael Meyer , Alexandra Greenbaum , Trent Dupuy , Adam Kraus

We characterise the origin and evolution of a mesoscale wave pattern in Jupiter's North Equatorial Belt (NEB), detected for the first time at 5 $\mu$m using a 2016-17 campaign of `lucky imaging' from the VISIR instrument on the Very Large…

We report the results of a study of the radio surroundings of the superluminal microquasar GRO J1655-40. We have searched for extended continuum structures that might be indicative of the presence of a supernova remnant (SNR) associated…

Astrophysics · Physics 2009-11-06 J. A. Combi , G. E. Romero , P. Benaglia , I. F. Mirabel

We present the first multi-epoch radial velocity study of embedded young massive stars using near-infrared spectra obtained with ISAAC mounted at the ESO Very Large Telescope, with the aim to detect massive binaries. Our 16 targets are…

Astrophysics · Physics 2008-11-26 Daniel Apai , Arjan Bik , Lex Kaper , Thomas Henning , Hans Zinnecker , ;

Fast radio bursts (FRBs) are millisecond-duration, bright ($\sim$Jy) extragalactic bursts, whose production mechanism is still unclear. Recently, two repeating FRBs were found to have a physically associated persistent radio source of…

The masses of compact objects like white dwarfs, neutron stars and black holes are fundamental to astrophysics, but very difficult to measure. We present the results of an analysis of subluminous B (sdB) stars in close binary systems with…

Astrophysics · Physics 2008-11-26 S. Geier , C. Karl , H. Edelmann , U. Heber , R. Napiwotzki

When planet-hosting stars evolve off the main sequence and go through the red-giant branch, the stars become orders of magnitudes more luminous and, at the same time, lose mass at much higher rates than their main-sequence counterparts.…

Plasma flow-obstacle interactions, such as those between an exoplanet's magnetosphere and the host star's stellar wind, may lead to detectable radio emissions. Despite many attempts to detect magnetospheric (auroral) radio emissions from…

Earth and Planetary Astrophysics · Physics 2024-05-01 Matthew Route

The aim of the project is to improve our knowledge on the multiplicity of planet-host stars at wide physical separations. We cross-matched approximately 6200 square degree area of the Southern sky imaged by the Visible Infrared Survey…

Earth and Planetary Astrophysics · Physics 2014-10-08 N. Lodieu , A. Perez-Garrido , V. J. S. Bejar , B. Gauza , M. T. Ruiz , R. Rebolo , D. J. Pinfield , E. L. Martin

We report the discovery of radio emission from the accreting X-ray pulsar and symbiotic X-ray binary GX 1+4 with the Karl G. Jansky Very Large Array. This is the first radio detection of such a system, wherein a strongly magnetized neutron…

High Energy Astrophysical Phenomena · Physics 2018-01-24 J. van den Eijnden , N. Degenaar , T. D. Russell , J. C. A. Miller-Jones , R. Wijnands , J. M. Miller , A. L. King , M. P. Rupen

Several binary systems consisting of a massive star and a compact object have been detected above 100 GeV in the Galaxy. In most of these sources, gamma-rays show a modulation associated to the orbital motion, which means that the emitter…

High Energy Astrophysical Phenomena · Physics 2015-05-18 V. Bosch-Ramon

The near-Earth (within $\sim 100$ pc) supernova explosions in the past several million years can cause the global deposition of radioactive elements (e.g., $^{60}$Fe) on Earth. The remnants of such supernovae are too old to be easily…

We have selected a small sample of post-AGB stars in transition towards the planetary nebula and present new Very Large Array multi-frequency high-angular resolution radio observations of them. The multi-frequency data are used to create…

Astrophysics · Physics 2009-11-13 L. Cerrigone , G. Umana , C. Trigilio , P. Leto , C. Buemi , Joseph L. Hora

Context. The modern generation of Cherenkov telescopes has revealed a new population of gamma-ray sources in the Galaxy. Some of them have been identified with previously known X-ray binary systems while other remain without clear…

Astrophysics · Physics 2009-11-13 Josep Marti , Josep M. Paredes , Ishwara Chandra C. H. , Valenti Bosch-Ramon

The LIGO/Virgo gravitational-wave (GW) interferometers have to-date detected ten merging black hole (BH) binaries, some with masses considerably larger than had been anticipated. Stellar-mass BH binaries at the high end of the observed mass…

PSR B1259-63 is a 48 ms pulsar in a highly eccentric 3.4 year orbit around the young massive star LS 2883. During the periastron passage the system displays transient non-thermal unpulsed emission from radio to very high energy gamma rays.…

High Energy Astrophysical Phenomena · Physics 2011-09-02 J. Moldon , S. Johnston , M. Ribo , J. M. Paredes , A. T. Deller

The dispersion of fast radio bursts (FRBs) measures the column density of free electrons, tracing the diffuse ionized gas that contains more than $90\%$ of all baryons. On linear scales the FRB dispersion field is an approximately unbiased…

Cosmology and Nongalactic Astrophysics · Physics 2026-04-29 Shion Andrew , Haochen Wang , Kiyoshi Masui , Josh Borrow , Calvin Leung , Ryan Raikman , Matthieu Schaller , Joop Schaye , James M. Sullivan