Results 21 to 30 of about 1,360 (234)
Decomposition of the central structure of NGC 2273 in the NIR: A case study
Astronomische Nachrichten, Volume 344, Issue 10, December 2023., 2023 Abstract The Seyfert 2 galaxy NGC 2273 is a prime target to explore how active nuclei can be fed. It has a star‐forming innermost nuclear ring with a radius of 0.33kpc from where material may be funneled to the supermassive black hole in its center. In this article, we discuss high‐resolution adaptive optics aided JHKs images of NGC 2273 taken with the
L. Schey +13 more
wiley +1 more source
Ultra wide‐field infrared astronomy in Antarctica
Astronomische Nachrichten, Volume 344, Issue 8-9, October-November 2023., 2023 The science enabled by the deep and high‐cadence survey that will be performed by the Vera Rubin Observatory has led to an increase of survey and follow‐up capabilities around the world. The infrared, has however, not match this growth due to the challenges caused by the atmospheric and the cost of large detector arrays.
Tony Travouillon +6 more
wiley +1 more source
Mid-Infrared Spectral Diagnostics of Luminous Infrared Galaxies [PDF]
AIP Conference Proceedings, 2010 We present a statistical analysis of 248 luminous infrared galaxies (LIRGs) which comprise the Great Observatories All‐sky LIRG Survey (GOALS) observed with the Infrared Spectrograph (IRS) on‐board Spitzer in the rest‐frame wavelength range between 5 and 38 μm.
A. Petric +2 more
openaire +2 more sources
A brief history of image sensors in the optical
Astronomische Nachrichten, Volume 344, Issue 8-9, October-November 2023., 2023 Image sensors, most notably the Charge Coupled Device (CCD), have revolutionized observational astronomy as perhaps the most important innovation after photography. Since the 50th anniversary of the invention of the CCD has passed in 2019, it is time to review the development of detectors for the visible wavelength range, starting with the discovery of
Martin M. Roth
wiley +1 more source
Infrared polarimetry of galaxies. I - Infrared luminous galaxies
The Astrophysical Journal, 1989 Les observations polarimetriques a 1.2, 1.65 et 2.2 μm sont presentees pour les noyaux de 6 galaxies IR lumineuses: IRAS 05189-2524, UGC 5101, Mrk 231, Mrk 273, Arp 220 et NGC 6240. Les nombreux mecanismes et les geometries responsables de la production de la polarisation dans le proche IR sont discutes en ...
Terry Jay Jones, Dimitri Klebe
openaire +1 more source
Mid infrared properties of distant infrared luminous galaxies [PDF]
Astronomy & Astrophysics, 2006 15 pages, 9 figures, accepted for publication in A& ...
Marcillac, D +5 more
openaire +2 more sources
Advanced Intelligent Systems, Volume 5, Issue 6, June 2023., 2023 This review discusses the design and application of current smartphone‐based diagnostic devices and highlights challenges associated with existent methods and perspectives on how to deal with those challenges from engineering aspects on the constant color signal acquisition, including smartphone adapter design, color space transformation, machine ...
Kexin Fan +4 more
wiley +1 more source
Dense gas in luminous infrared galaxies [PDF]
Astronomy & Astrophysics, 2007 Molecules that trace the high-density regions of the interstellar medium have been observed in (ultra-)luminous (far-)infrared galaxies, in order to initiate multiple-molecule multiple-transition studies to evaluate the physical and chemical environment of the nuclear medium and its response to the ongoing nuclear activity. The HCN(1-0), HNC(1-0), HCO+(
Baan, W. A. +4 more
openaire +3 more sources
The Astrophysical Journal, 2023 The Dragonfly galaxy (MRC 0152-209), the most infrared-luminous radio galaxy at redshift z ∼ 2, is a merger system containing a powerful radio source and large displacements of gas.
Sophie Lebowitz +10 more
doaj +1 more source
GOALS-JWST: Hidden Star Formation and Extended PAH Emission in the Luminous Infrared Galaxy VV 114
The Astrophysical Journal Letters, 2022 James Webb Space Telescope (JWST) Mid-Infrared Instrument (MIRI) images of the luminous infrared (IR) galaxy VV 114 are presented. This redshift ∼0.020 merger has a western component (VV 114W) rich in optical star clusters and an eastern component (VV ...
A. S. Evans +34 more
doaj +1 more source