Results 1 to 10 of about 89,515 (120)
The Astrophysical Journal, 2023 Photodissociation regions (PDRs) illuminated by high temperature ( T > 10 ^4 K) radiation fields display characteristic optical to midinfrared spectral features: emission bands that cluster around the blue limits of hydrogen series, an extended red ...
Frédéric Zagury
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The Astrophysical Journal, 2023 In order to investigate the far-infrared excess detected from the western hot spot of the radio galaxy Pictor A with the Herschel observatory, submillimeter photometry is performed with the Atacama Compact Array (ACA) of the Atacama Large Millimeter ...
Naoki Isobe +6 more
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The Astronomical Journal, 2023 Excess infrared flux from white dwarf stars is likely to arise from a dusty debris disk or a cool companion. In this work, we present near-infrared spectroscopic observations with Keck/MOSFIRE, Gemini/GNIRS, and Gemini/Flamingos-2 of seven white dwarfs ...
Dylan Owens +9 more
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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 +7 more
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White Dwarfs with Infrared Excess from LAMOST Data Release 5
The Astrophysical Journal, 2023 Infrared (IR) excess is an important probe for substellar companions and/or debris disks around white dwarfs (WDs). Such systems are still rare, so an in-depth understanding of their formation and long-term evolution has yet to be developed.
Lin Wang +7 more
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Dust distribution in L1217/L1219: Nice vs. Nicer [PDF]
Serbian Astronomical Journal, 2004 The dust in molecular clouds reliably traces the molecular gas within. We used this assumption to get an estimate of the dense cores size and mass in L1217/L1219 by deriving the total optical extinction, and therefore, the total column density.
Nikolić S., Kun M.
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The Astrophysical Journal, 2023 ASASSN-21qj is a distant Sun-like star that recently began an episode of deep dimming events after no prior recorded variability. Here we examine archival and newly obtained optical and near-infrared data of this star.
Jonathan P. Marshall +8 more
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Can decaying particle explain cosmic infrared background excess?
Physics Letters B, 2017 Recently the CIBER experiment measured the diffuse cosmic infrared background (CIB) flux and claimed an excess compared with integrated emission from galaxies. We show that the CIB spectrum can be fitted by the additional photons produced by the decay of
Kazunori Kohri +2 more
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Water Stress Index Detection Using a Low-Cost Infrared Sensor and Excess Green Image Processing
Sensors, 2023 Precision Irrigation (PI) is a promising technique for monitoring and controlling water use that allows for meeting crop water requirements based on site-specific data. However, implementing the PI needs precise data on water evapotranspiration.
Rodrigo Leme de Paulo +5 more
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The Astrophysical Journal, 2023 The planetary infrared excess (PIE) technique has the potential to efficiently detect and characterize the thermal spectra of both transiting and non-transiting exoplanets. However, the technique has not been evaluated on multiplanet systems.
L. C. Mayorga +3 more
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