Results 11 to 20 of about 101,515 (208)

Probing the Nature of the First Galaxies with JWST and ALMA

The Astrophysical Journal Letters, 2023
By implementing a model of primordial dust emission, we predict dust-continuum fluxes for massive galaxy sources similar to those recently detected by James Webb Space Telescope (JWST) at z ≳ 7.
María Emilia De Rossi, Volker Bromm
doaj   +1 more source

Astrochemistry With the Orbiting Astronomical Satellite for Investigating Stellar Systems

Frontiers in Astronomy and Space Sciences, 2022
Chemistry along the star- and planet-formation sequence regulates how prebiotic building blocks—carriers of the elements CHNOPS—are incorporated into nascent planetesimals and planets.
Jennifer B. Bergner, Yancy L. Shirley, Jes K. Jørgensen, Brett McGuire, Brett McGuire, Susanne Aalto, Carrie M. Anderson, Gordon Chin, Maryvonne Gerin, Paul Hartogh, Daewook Kim, Daewook Kim, David Leisawitz, Joan Najita, Kamber R. Schwarz, Alexander G. G. M. Tielens, Alexander G. G. M. Tielens, Christopher K. Walker, David J. Wilner, Edward J. Wollack   +19 more
doaj   +1 more source

An angle-scanned cryogenic Fabry–Pérot interferometer for far-infrared astronomy [PDF]

Review of Scientific Instruments, 2020
The sensitivity of state-of-the-art superconducting far-infrared detectors used in conjunction with cryogenically cooled space telescopes and instrumentation is such that spectroscopic observations are generally limited by photon noise from the astronomical source or by galactic foreground or zodiacal emission within the field-of-view.
Ian Veenendaal, David Naylor, Brad Gom, Adam Christiansen, Willem Jellema, Carolien Feenstra, Marcel Ridder, Martin Eggens, Peter Ade   +8 more
openaire   +4 more sources

Pushing The Limits of Mid-Wave Infrared Detection with Superconducting Nanowire Single-Photon Detectors [PDF]

EPJ Web of Conferences
Extending single-photon detection capabilities into the mid- infrared is expected to have far-reaching implications for long-wavelength quantum optics, quantum and free-space communication, astronomy, environmental monitoring, and fundamental molecular ...
Oksenberg Eitan, Gourgues Ronan, Meder Steffen, Zöllner Jona, Los Johannes W. N., Finley Jonathan, Castaneda Mario   +6 more
doaj   +1 more source

Exploring the Magnetic Field Geometry in NGC 891 with SOFIA/HAWC+

The Astronomical Journal, 2023
Stratospheric Observatory For Infrared Astronomy/High-resolution Airborne Wideband Camera-plus 154 μ m Far-Infrared polarimetry observations of the well-studied edge-on galaxy NGC 891 are analyzed and compared to simple disk models with ordered (planar ...
Jin-Ah Kim, Terry Jay Jones, C. Darren Dowell   +2 more
doaj   +1 more source

Cross-slot metal-mesh bandpass filters for far-infrared astronomy

Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI, 2022
The far-infrared (IR) region is rich with information needed to characterize interstellar dust and to investigate the cold outer planets of the solar system and their icy moons. The proposed sub-orbital observatory the Balloon Experiment for Galactic INfrared Science (BEGINS) will utilize cryogenic instruments to map spectral energy distributions (SEDs)
Perido, Joanna, Denis, Kevin, Glenn, Jason, Cothard, Nicholas F., Quijada, Manuel, Patel, Jessica, Wollack, Edward, Hewagama, Tilak, Aslam, Shahid, Day, Peter K.   +9 more
openaire   +2 more sources

Infrared to millimetre photometry of ultra-luminous IR galaxies: new evidence favouring a 3-stage dust model [PDF]

, 2001
Infrared to millimetre spectral energy distributions have been obtained for 41 bright ultra-luminous infrared galaxies. The observations were carried out with ISOPHOT between 10 and 200 micron and supplemented for 16 sources with SCUBA at 450 and 850 ...
Allen, B. Schulz, Bianchi, Boksenberg, Chini, Chini, Chini, Chini, Clavel, Clements, Colina, Condon, Crawford, D. Lemke, de Grijp, Downes, Dubinski, Duc, Dunne, Fried, Gao, Genzel, Genzel, H. Hippelein, Haas, Haas, Haas, Herbst, Hildebrand, Hill, Holland, I. Coulson, Imanishi, K. Wilke, Kessler, Kim, Klaas, Klaas, Krabbe, Krügel, Lagache, Laurent, Lemke, Lisenfeld, Lutz, Lutz, M. Albrecht, M. Haas, Marx, Mathis, Mattila, Mattila, Mauersberger, Mirabel, Murphy, Pier, Pier, R. Chini, Rigopoulou, Rigopoulou, Risaliti, Rowan-Robinson, Rowan-Robinson, Rowan-Robinson, S. A. H. Müller, Sanders, Sanders, Sanders, Sanders, Sanders, Scoville, Solomon, Stickel, Thuma, Tran, U. Klaas, Veilleux, Veilleux, Vignati   +78 more
core   +2 more sources

A Rotating Accretion Disk around MWC 297, a Young B1.5Ve Star

The Astronomical Journal, 2023
High-resolution spectra with iSHELL on IRTF in the K and M bands of the young, heavily accreting B1.5Ve star MWC 297 show numerous double-peaked CO lines. These CO lines originate in an inclined gaseous disk in Keplerian rotation.
Göran Sandell, William Vacca
doaj   +1 more source

The first detection of Far-Infrared emission associated with an extended HI disk. The case of NGC 891 [PDF]

, 2003
Spiral galaxies in the Local Universe are commonly observed to be embedded in extended disks of neutral hydrogen - the so called ``extended HI disks''.
Alton, Alton, Broeils, C. C. Popescu, Cuillandre, Davies, Davies, Dettmar, Draine, Dupac, Ferrara, García-Burillo, Guélin, Kessler, Kylafis, Laor, Larson, Lemke, Maller, Misiriotis, Pei, Pohlen, Popescu, Popescu, Popescu, R. J. Tuffs, Radovich, Rand, Sancisi, Swaters, Tinsley, Trewhella, Tuffs, Tuffs, van der Hulst, van der Kruit, Xilouris, Xilouris, Zaritsky   +38 more
core   +1 more source

Evidence for the Disruption of a Planetary System During the Formation of the Helix Nebula

The Astronomical Journal, 2022
The persistence of planetary systems after their host stars evolve into their post-main-sequence phase is poorly constrained by observations. Many young white dwarf systems exhibit infrared excess emission and/or spectral absorption lines associated with
Jonathan P. Marshall, Steve Ertel, Eric Birtcil, Eva Villaver, Francisca Kemper, Henri Boffin, Peter Scicluna, Devika Kamath   +7 more
doaj   +1 more source