Zobrazeno 1 - 10
of 356
pro vyhledávání: '"J A, Shull"'
Autor:
Marc Postman, Tod R. Lauer, Joel W. Parker, John R. Spencer, Harold A. Weaver, J. Michael Shull, S. Alan Stern, Pontus Brandt, Steven J. Conard, G. Randall Gladstone, Carey M. Lisse, Simon B. Porter, Kelsi N. Singer, Anne. J. Verbiscer
Publikováno v:
The Astrophysical Journal, Vol 972, Iss 1, p 95 (2024)
We obtained New Horizons LORRI images to measure the cosmic optical background (COB) intensity integrated over 0.4 μ m ≲ λ ≲ 0.9 μ m. The survey comprises 16 high-Galactic-latitude fields selected to minimize scattered diffuse Galactic light (
Externí odkaz:
https://doaj.org/article/fa93a1cb31ea4548a11450106e0d2971
Publikováno v:
The Astrophysical Journal, Vol 961, Iss 2, p 204 (2024)
Interstellar dust at high Galactic latitudes can influence astronomical foreground subtraction, produce diffuse scattered light, and soften the UV spectra of quasars. In a sample of 94 sight lines toward quasars at high latitude and low extinction, w
Externí odkaz:
https://doaj.org/article/475a99226ec64b79b210777ff7df92e5
Autor:
Robert A. Fesen, Stefan Kimeswenger, J. Michael Shull, Marcel Drechsler, Xavier Strottner, Yann Sainty, Bray Falls, Christophe Vergnes, Nicolas Martino, Sean Walker, Justin Rupert
Publikováno v:
The Astrophysical Journal, Vol 957, Iss 2, p 82 (2023)
Drechsler et al. reported the unexpected discovery of a 1.°5 long [O iii ] emission nebula 1.°2 southeast of the M31 nucleus. Here we present additional images of this large emission arc, called the Strottner–Drechsler–Sainty Object (SDSO), alo
Externí odkaz:
https://doaj.org/article/db1a9fe4943742f98e798e979551e7c2
Autor:
J. Michael Shull, S. R. Kulkarni
Publikováno v:
The Astrophysical Journal, Vol 951, Iss 1, p 35 (2023)
Bow shocks are produced in the local interstellar medium by the passage of fast stars from the Galactic thin-disk and thick-disk populations with velocities V _* = 40–80 km s ^−1 . Stellar transits of local H i clouds occur every 3500–7000 yr o
Externí odkaz:
https://doaj.org/article/087374b314e9488a9221ca0e6b28cc71
Autor:
Adam M. Ritchey, Edward B. Jenkins, J. Michael Shull, Blair D. Savage, S. R. Federman, David L. Lambert
Publikováno v:
The Astrophysical Journal, Vol 952, Iss 1, p 57 (2023)
In this investigation, we present an analysis of the metallicity distribution that pertains to neutral gas in the local Galactic interstellar medium (ISM). We derive relative ISM metallicities for a sample of 84 sight lines probing diffuse atomic and
Externí odkaz:
https://doaj.org/article/390ef8b3981d47dc81f5326b52814f91
Autor:
P. Guillard, P. N Appleton, F. Boulanger, J. M. Shull, M. D. Lehnert, G. Pineau des Forets, E. Falgarone, M. E. Cluver, C. K. Xu, S. C. Gallagher, P. A. Duc
Publikováno v:
Physics and Astronomy Publications
We present Hubble Space Telescope Cosmic Origin Spectrograph (COS) UV line spectroscopy and integral-field unit (IFU) observations of the intra-group medium in Stephan's Quintet (SQ). SQ hosts a 30 kpc long shocked ridge triggered by a galaxy collisi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe019ea5def6426c97368d2d44a298ee
https://resolver.caltech.edu/CaltechAUTHORS:20220203-317857000
https://resolver.caltech.edu/CaltechAUTHORS:20220203-317857000
Autor:
Marcel Drechsler, Xavier Strottner, Yann Sainty, Robert A. Fesen, Stefan Kimeswenger, J. Michael Shull, Bray Falls, Christophe Vergnes, Nicolas Martino, Sean Walker
Publikováno v:
Research Notes of the AAS. 7:1
We report the discovery of a broad, 1.°5 long filamentary [O iii] emission nebulosity some 1.°2 southeast of the M31 nucleus. This nebulosity is not detected in Hα and has no obvious emission counterparts in X-ray, UV, optical, infrared, and radio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a5ee8b20f67e40595e7ca6df93bc80f1
https://doi.org/10.3847/2515-5172/acaf7e
https://doi.org/10.3847/2515-5172/acaf7e
Autor:
J. Michael Shull
Publikováno v:
Physics Today. 75:12-12
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb2ecf93d8ae52c2e08fa030dd6d21a9
https://doi.org/10.1063/pt.3.5132
https://doi.org/10.1063/pt.3.5132
We report results from a FUSE survey of interstellar molecular hydrogen (H2) in the Galactic disk toward 139 O-type and early B-type stars at Galactic latitudes $|b| < 10^{\circ}$, with updated photometric and parallax distances. The H2 absorption is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db48ecb47e3463abea825723a6a7482a
http://arxiv.org/abs/2102.11301
http://arxiv.org/abs/2102.11301
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2018, 476 (1), pp.1356-1370. ⟨10.1093/mnras/sty294⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2018, 476 (1), pp.1356-1370. ⟨10.1093/mnras/sty294⟩
Mon.Not.Roy.Astron.Soc.
Mon.Not.Roy.Astron.Soc., 2018, 476 (1), pp.1356-1370. ⟨10.1093/mnras/sty294⟩
Mon.Not.Roy.Astron.Soc., 2018, 476 (1), pp.1356. 〈10.1093/mnras/sty294〉
Monthly Notices of the Royal Astronomical Society, 2018, 476 (1), pp.1356-1370. ⟨10.1093/mnras/sty294⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2018, 476 (1), pp.1356-1370. ⟨10.1093/mnras/sty294⟩
Mon.Not.Roy.Astron.Soc.
Mon.Not.Roy.Astron.Soc., 2018, 476 (1), pp.1356-1370. ⟨10.1093/mnras/sty294⟩
Mon.Not.Roy.Astron.Soc., 2018, 476 (1), pp.1356. 〈10.1093/mnras/sty294〉
We present a blind search for doublet intergalactic metal absorption with a method dubbed `agnostic stacking'. Using a forward-modelling framework we combine this with direct detections in the literature to measure the overall metal population. We ap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::502ac35a8d3618ee4d07f683f16a60a5
https://doi.org/10.1093/mnras/sty294
https://doi.org/10.1093/mnras/sty294