Results 41 to 50 of about 101,515 (208)

The Massive and Distant Clusters of WISE Survey 2: A Stacking Analysis Investigating the Evolution of Star Formation Rates and Stellar Masses in Groups and Clusters

The Astrophysical Journal
The evolution of galaxies depends on their masses and local environments; understanding when and how environmental quenching starts to operate remains a challenge.
A. Trudeau, Anthony H. Gonzalez, K. Thongkham, Kyoung-Soo Lee, Stacey Alberts, M. Brodwin, Thomas Connor, Peter R. M. Eisenhardt, Emily Moravec, Eshwar Puvvada, S. A. Stanford   +10 more
doaj   +1 more source

CO Excitation in High-z Main-sequence Analogues: Resolved CO(4−3)/CO(3−2) Line Ratios in DYNAMO Galaxies

The Astrophysical Journal, 2023
The spectral line energy distribution of carbon monoxide contains information about the physical conditions of the star-forming molecular hydrogen gas; however, the relation to local radiation field properties is poorly constrained.
Laura Lenkić, Alberto D. Bolatto, Deanne B. Fisher, Roberto Abraham, Karl Glazebrook, Rodrigo Herrera-Camus, Rebecca C. Levy, Danail Obreschkow, Carolyn G. Volpert   +8 more
doaj   +1 more source

GREAT: the SOFIA high-frequency heterodyne instrument

, 2012
We describe the design and construction of GREAT, the German REceiver for Astronomy at Terahertz frequencies operated on the Stratospheric Observatory for Infrared Astronomy (SOFIA).
Becklin, de Graauw, Guan, H. W. Hübers, Horn, J. Stutzki, Klein, Klein, P. Hartogh, Pilbratt, Pütz, R. Güsten, Röser, S. Heyminck, U. U. Graf, Villanueva, Wagner-Gentner, Young   +17 more
core   +1 more source

Balloon-borne three-meter telescope for far-infrared and submillimeter astronomy [PDF]

The scientific objectives, engineering analysis and design, results of technology development, and focal-plane instrumentation for a two-meter balloon-borne telescope for far-infrared and submillimeter astronomy are presented.
Fazio, Giovanni G., Harper, Doyal A., Hoffmann, William F.   +2 more
core   +7 more sources

Modeling Long-wavelength Amorphous Dust Emission Based on the Physically Motivated Soft-potential Model

The Astrophysical Journal
We propose a new amorphous dust emission model based on the soft-potential (SP) model, applicable in the long-wavelength range from the far-infrared to the microwave.
Masashi Nashimoto
doaj   +1 more source

Polarimetry in the Visible and Infrared: Application to CMB Polarimetry

, 2003
Interstellar polarization from aligned dust grains can be measured both in transmission at visible and near-infrared wavelengths and in emission at far-infrared and sub-mm wavelengths.
Fosalba, Heiles, Hildebrand, Jones, Jones, Schlegel, Terry J Jones   +6 more
core   +1 more source

Focal Plane Optics In Far-Infrared And Submillimeter Astronomy [PDF]

Optical Engineering, 1986
The construction of airborne observatories, high mountaintop observatories, and space observatories designed especially for infrared and submillimeter astronomy has opened fields of research requiring new optical techniques. A typical far-IR photometric study involves measurement of a continuous spectrum in several passbands between ~30 µm and 1000 µm ...
openaire   +1 more source

Mid- to Far-Infrared spectroscopy of Sharpless 171 [PDF]

, 2003
We have collected one-dimensional raster-scan observations of the active star-forming region Sharpless 171 (S171), a typical HII region-molecular cloud complex, with the three spectrometers (LWS, SWS, and PHT-S) on board ISO.
Baluteau, Boreiko, Boreiko, Cardelli, Carral, Cartledge, Caux, Chan, Clegg, de Graauw, Draine, Felli, Fitzpatrick, Fitzpatrick, Giannini, H. Shibai, Haas, Habing, Harten, Hollenbach, Hollenbach, Holweger, Jones, Jones, Jones, Kaufman, Keenan, Kessler, Kraemer, Lemke, Liseau, MacConnell, Martín-Hernández, Mathis, Mizutani, Mizutani, Moorwood, Morisset, Morton, Poglitsch, Rossano, Rubin, Savage, Sembach, Sofia, Swinyard, T. Onaka, Tielens, Tielens, Vastel, Watson, Wolfire, Wright, Y. Doi, Y. Okada, Yang   +55 more
core   +1 more source

Far-infrared Luminosity Bursts Trace Mass Accretion onto Protostars

The Astronomical Journal
Evidence abounds that young stellar objects undergo luminous bursts of intense accretion that are short compared to the time it takes to form a star. It remains unclear how much these events contribute to the main-sequence masses of the stars.
William J. Fischer, Cara Battersby, Doug Johnstone, Rachel Lee, Marta Sewiło, Henrik Beuther, Yasuhiro Hasegawa, Adam Ginsburg, Klaus Pontoppidan   +8 more
doaj   +1 more source

The ISOPHOT-MAMBO survey of 3CR radio sources: Further evidence for the unified schemes

, 2004
We present the complete set of ISOPHOT observations of 3CR radio galaxies and quasars, which are contained in the ISO Data Archive, providing 75 mid- and far-infrared spectral energy distributions (SEDs) between 5 and 200 micron.
Akujor, Andreani, Antonucci, Antonucci, Antonucci, Archibald, Barthel, Barthel, Barthel, Begelman, Bennett, Best, Blundell, Cesarsky, Chiaberge, Chiaberge, Chini, Cohen, D. Lemke, F. Bertoldi, Fanti, Freudling, Haas, Haas, Haas, Haas, Heckman, Heckman, Hes, Hildebrand, Hill, Hine, Hoekstra, Hughes, I. van Bemmel, K. Meisenheimer, Kaiser, Kellermann, Kessler, Klaas, Kreysa, Kühr, Laing, Lawrence, Lemke, Lilly, Lilly, M. Haas, Meisenheimer, Miley, Netzer, Neugebauer, O. Krause, Orr, Pier, Pier, Polletta, R. Chini, R. Siebenmorgen, Robson, S. A. H. Müller, S. Egner, Saunders, Siebenmorgen, Simpson, Simpson, Singal, Spinrad, Steppe, Steppe, Steppe, Stickel, U. Klaas, Urry, van Bemmel, van Bemmel, van Bemmel, W. Freudling, Wada, Wilkinson, Willott, Willott   +81 more
core   +1 more source