Search Publications
The Impact of JWST Broadband Filter Choice on Photometric Redshift Estimation
Ilbert, O.; Nørgaard-Nielsen, H. U.; Colina, L. +8 more
The determination of galaxy redshifts in the James Webb Space Telescope’s (JWST) blank-field surveys will mostly rely on photometric estimates, based on the data provided by JWST’s Near-Infrared Camera (NIRCam) at 0.6-5.0 µm and Mid Infrared Instrument (MIRI) at λ > 5.0 µ {{m}}. In this work we analyze the impact of choosing differe…
Discovery of γ-Ray Emission from the Radio-intermediate Quasar III Zw 2: Violent Jet Activity with Intraday γ-Ray Variability
Weng, Shan-Shan; Chen, Liang; Fan, Yi-Zhong +4 more
III Zw 2 is the prototype of radio-intermediate quasars. Although there is the evidence of possessing strong jet, significant γ-ray emission has not been reported before. In this work, we carry out a detailed analysis of the latest Fermi-LAT Pass 8 data. No significant γ-ray signal has been detected in the time-averaged 7-year Fermi-LAT data of II…
Identification of z ≳ 2 Herschel 500 µM Sources Using Color Deconfusion
Elbaz, D.; Ferguson, H. C.; Leiton, R. +19 more
We present a new method to search for candidate z ≳ 2 Herschel 500 µm sources in the Great Observatories Origins Deep Survey-North field using a S500 µm/S24 µm “color deconfusion” technique. Potential high-z sources are selected against low-redshift ones from their large 500 to 24 µm flux density ratio…
Spectroscopic Survey of G and K Dwarfs in the Hipparcos Catalog. I. Comparison between the Hipparcos and Photometric Parallaxes
Lee, Young Sun; Stauffer, John R.; Terndrup, Donald M. +3 more
The tension between the Hipparcos parallax of the Pleiades and other independent distance estimates continues even after the new reduction of the Hipparcos astrometric data and the development of a new geometric distance measurement for the cluster. A short Pleiades distance from the Hipparcos parallax predicts a number of stars in the solar neigh…
Maps of the Magellanic Clouds from Combined South Pole Telescope and PLANCK Data
Bleem, L. E.; Stark, A. A.; George, E. M. +39 more
We present maps of the Large and Small Magellanic Clouds from combined South Pole Telescope (SPT) and Planck data. The Planck satellite observes in nine bands, while the SPT data used in this work were taken with the three-band SPT-SZ camera, The SPT-SZ bands correspond closely to three of the nine Planck bands, namely those centered at 1.4, 2.1, …
Infrared and Ultraviolet Spectra of Methane Diluted in Solid Nitrogen and Irradiated with Electrons during Deposition at Various Temperatures
Chin, Chih-Hao; Chen, Sian-Cong; Liu, Meng-Chen +2 more
We recorded the infrared and ultraviolet absorption spectra of CH4:N2 matrix samples that underwent electron bombardment during deposition in the temperature range of 10-44 K. In contrast to a previous experiment on the IR spectroscopy of electron-bombarded icy samples, methyl and azide radicals became the main products upon …
A Search for Very Low-luminosity Objects in Gould Belt Clouds
Kim, Gwanjeong; Kim, Mi-Ryang; Lee, Chang Won +3 more
We present the results of a search for Very Low-Luminosity Objects (VeLLOs) in the Gould Belt (GB) clouds using infrared and sub-millimeter (sub-mm) data from 1.25 to 850 µm and our {{{N}}}2{{{H}}}+ (J = 1-0) observations. We modified the criteria by Dunham et al. to select the VeLLOs in the GB clouds, finding 95 VeLLO …
The Spitzer-IRAC/MIPS Extragalactic Survey (SIMES) in the South Ecliptic Pole Field
Rodighiero, G.; Papovich, C.; Salvato, M. +25 more
We present the Spitzer-IRAC/MIPS Extragalactic survey (SIMES) in the South Ecliptic Pole field. The large area covered (7.7 deg2), together with one of the lowest Galactic cirrus emissions in the entire sky and a very extensive coverage by Spitzer, Herschel, Akari, and GALEX, make the SIMES field ideal for extragalactic studies. The elo…
A Multi-wavelength 3D Model of BD+30°3639
Freeman, M. J.; Kastner, Joel H.
We present a 3D multi-wavelength reconstruction of BD+30°3639, one of the best-studied planetary nebulae in the solar neighborhood. BD+30°3639, which hosts a [WR]-type central star, has been imaged at wavelength regimes that span the electromagnetic spectrum, from radio to X-rays. We have used the astrophysical modeling software SHAPE to construct…
FK Comae Berenices, King of Spin: The COCOA-PUFS Project
Granzer, T.; Ayres, Thomas R.; Korhonen, H. +8 more
COCOA-PUFS is an energy-diverse, time-domain study of the ultra-fast spinning, heavily spotted, yellow giant FK Comae Berenices (FK Com: HD117555; G4 III). This single star is thought to be a recent binary merger, and is exceptionally active by measure of its intense ultraviolet (UV) and X-ray emissions, and proclivity to flare. COCOA-PUFS was car…