Results 41 to 50 of about 6,189 (188)

New Infrared Seyfert Galaxies

, 1998
We present optical spectra for new infrared Seyfert galaxies obtained with the 2.16m telescope at Beijing Astronomical Observatory (BAO). After wavelength and flux calibration, they are classified by the degree of nuclear activity: nine Seyfert 2 and three Seyfert 3 galaxies.
Gu, Q. -S., Huang, J. -H., Su, H. -J., Shang, Z. -H.   +3 more
openaire   +2 more sources

Terrestrial Analogs to Titan for Geophysical Research

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon, Samuel Birch, Audrey Chatain, Charles Cockell, Kendra K. Farnsworth, Peter M. Higgins, Stéphane Le Mouélic, Rosaly M. C. Lopes, Michael J. Malaska, Mohit Melwani Daswani, Kelly E. Miller, Catherine D. Neish, Olaf G. Podlaha, Jani Radebaugh, Lauren R. Schurmeier, Ashley Schoenfeld, Krista M. Soderlund, Anezina Solomonidou, Christophe Sotin, Nicholas A. Teanby, Tetsuya Tokano, Steven D. Vance   +21 more
wiley   +1 more source

Engineering Asymmetry: How Chirality Boosts Catalysis, Spin Selectivity, and Light–Matter Interactions

ChemPhotoChem, Volume 10, Issue 4, April 2026.
This review connects chiroptical spectroscopy, asymmetric catalysis, and spintronics, revealing how chirality influences the interactions of matter with light, charge, and spin. Across diverse systems, remarkable chiroptical effects emerge, showing among others that high efficiencies can arise without absolute enantiopurity, and that functionality is ...
Charitini Panagiotopoulou, Maedeh Anisi, Changseop Jeong, Kamyar Shameli, J. Lorenzo Alonso‐Gómez, Aras Kartouzian   +5 more
wiley   +1 more source

Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the String‐Theoretical Swampland Programme

Fortschritte der Physik, Volume 74, Issue 4, April 2026.
Abstract String theory has strong implications for cosmology, implying the absence of a cosmological constant, ruling out single‐field slow‐roll inflation, and that black holes decay. The origins of these statements are elucidated within the string‐theoretical swampland programme.
Kay Lehnert
wiley   +1 more source

ISO Spectroscopy of Ultraluminous Infrared Galaxies

Astrophysics and Space Science, 1999
Spectroscopy from the Infrared Space Observatory ISO has for the first timeprovided the sensitivity to exploit the diagnostic power ofmid-infrared fine structure lines and PAH features for the study ofultraluminous infrared galaxies (LIR >1012 L ⊙). We report on observations obtainedwith SWS, ISOPHOT-S, and the CVF option of ISOCAM.
Lutz, D, Genzel, R, Kunze, D, Rigopoulou, D, Spoon, H, Sturm, E, Tran, D, Moorwood, A   +7 more
openaire   +1 more source

Near-infrared imaging of interacting galaxies

The Astrophysical Journal, 1990
Galaxy-galaxy interactions are known to cause dramatic changes in morphology and at the same time often induce large bursts of star formation activity. While optical images are sufficient to reveal the overall morphological peculiarities of these systems, they suffer from several problems, the greatest of which is obscuration by dust within the ...
H. A. Bushouse, M. W. Werner
openaire   +1 more source

The QSO — Ultraluminous Infrared Galaxies Connection [PDF]

, 2001
For the past several years, our group has pursued a vigorous ground-based program aimed at understanding the nature of ultraluminous infrared galaxies. We recently published the results from a optical/near-infrared spectroscopic survey of a large statistically complete sample of ultraluminous infrared galaxies (the "IRAS 1-Jy sample").
Veilleux, S., Kim, D. -C., Sanders, D. B.   +2 more
openaire   +2 more sources

Anomalous Hydrogen Recombination Line Ratios in Ultraluminous Infrared Galaxies [PDF]

, 2021
Ken’ichi Yano, Shunsuke Baba, Takao Nakagawa, Matthew A. Malkan, Naoki Isobe, Mai Shirahata, Ryosuke Doi, Vanshree Bhalotia   +7 more
openalex   +1 more source

The physiology of survival: Space

Experimental Physiology, EarlyView.
Damian M. Bailey, Angelique van Ombergen
wiley   +1 more source

Erratum: “VLA H53α Radio Recombination Line Observations of the Ultraluminous Infrared Galaxy Arp 220” (ApJ, 633, 198 [2005]) [PDF]

, 2007
C. A. Rodriguez‐Rico, W. M. Goss, F. Viallefond, Jun‐Hui Zhao, Yolanda Gómez, K. R. Anantharamaiah   +5 more
openalex   +1 more source