Výsledky vyhledávání - "S. C. Gallagher"

Akademický článek

Gemini Near Infrared Spectrograph–Distant Quasar Survey: Augmented Spectroscopic Catalog and a Prescription for Correcting UV-based Quasar Redshifts

Autor: Brandon M. Matthews, Cooper Dix, Ohad Shemmer, Michael S. Brotherton, Adam D. Myers, I. Andruchow, W. N. Brandt, S. C. Gallagher, Richard Green, Paulina Lira, Jacob N. McLane, Richard M. Plotkin, Gordon T. Richards, Jessie C. Runnoe, Donald P. Schneider, Michael A. Strauss

Publikováno v: The Astrophysical Journal, Vol 950, Iss 2, p 95 (2023)

Quasars at z ≳ 1 most often have redshifts measured from rest-frame ultraviolet emission lines. One of the most common such lines, C iv λ 1549, shows blueshifts up to ≈5000 km s ^−1 and in rare cases even higher. This blueshifting results in h

Externí odkaz: https://doaj.org/article/25062c2fd73c4711a5938a3a6307e406

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Akademický článek

Shedding New Light on Weak Emission-line Quasars in the C iv–Hβ Parameter Space

Publikováno v: The Astrophysical Journal, Vol 950, Iss 2, p 97 (2023)

Weak emission-line quasars (WLQs) are a subset of type 1 quasars that exhibit extremely weak Ly α + N v λ 1240 and/or C iv λ 1549 emission lines. We investigate the relationship between emission-line properties and accretion rate for a sample of 2

Externí odkaz: https://doaj.org/article/b881a905c75048248e07d81ff0e2419c

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Extremely Broad Lyα Line Emission from the Molecular Intragroup Medium in Stephan’s Quintet: Evidence for a Turbulent Cascade in a Highly Clumpy Multiphase Medium?

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

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NuSTAR Observations of Intrinsically X-Ray Weak Quasar Candidates: An Obscuration-only Scenario

Autor: Chaojun Wang, B. Luo, W. N. Brandt, D. M. Alexander, F. E. Bauer, S. C. Gallagher, Jian Huang, Hezhen Liu, D. Stern

Publikováno v: The Astrophysical Journal, 2022, Vol.936(2), pp.95 [Peer Reviewed Journal]
Physics and Astronomy Publications

We utilize recent NuSTAR observations (co-added depth $\approx55$-120 ks) of PG $1001+054$, PG $1254+047$, and PHL 1811 to constrain their hard X-ray ($\gtrsim5$ keV) weakness and spectral shapes, and thus to investigate the nature of their extreme X

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e66aaf2ce7ad291b9a83068cab7d3a9c
https://doi.org/10.3847/1538-4357/ac886e

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Constraining FeLoBAL outflows from absorption line variability

Autor: S. C. Gallagher, Joseph C. Shields, Daniel M. Capellupo, S. M. McGraw, Fred Hamann, W. N. Brandt

Publikováno v: Physics and Astronomy Publications

FeLoBALs are a rare class of quasar outflows with low-ionization broad absorption lines (BALs), large column densities, and potentially large kinetic energies that might be important for `feedback' to galaxy evolution. In order to probe the physical

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16d4235d9e2ec3aee19ec41409eb8d8d
https://doi.org/10.1093/mnras/stv1697

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A multicenter, randomized, double-blind, placebo-controlled, dose-titration study of oral pilocarpine for treatment of radiation-induced xerostomia in head and neck cancer patients

Autor: M B Zimmer, S C Gallagher, Francis G. LeVeque, Charles C Muscoplat, J W Rieke, M Montgomery, B W Steiger, D Potter

Publikováno v: Journal of Clinical Oncology. 11:1124-1131

PURPOSE To determine the efficacy and safety of pilocarpine hydrochloride for symptomatic relief of postradiation xerostomia symptoms and for saliva production in patients with head and neck cancer. PATIENTS AND METHODS One hundred sixty-two head and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5727b4217f1829ba400d686ce653a77f
https://doi.org/10.1200/jco.1993.11.6.1124

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Pilocarpine tablets for the treatment of dry mouth and dry eye symptoms in patients with Sjögren syndrome: a randomized, placebo-controlled, fixed-dose, multicenter trial. P92-01 Study Group

Autor: F B, Vivino, I, Al-Hashimi, Z, Khan, F G, LeVeque, P L, Salisbury, T K, Tran-Johnson, C C, Muscoplat, M, Trivedi, B, Goldlust, S C, Gallagher

Publikováno v: Archives of internal medicine. 159(2)

Patients with Sjögren syndrome (SS) experience slowly progressive infiltration of lacrimal and salivary glands by mononuclear cells. This leads to diminished secretions, with resultant symptoms of xerostomia and xerophthalmia. Although pilocarpine h

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::d2ee6106545165bb943c671f6544c22d
https://pubmed.ncbi.nlm.nih.gov/9927101

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Neutron and X-ray solution scattering provide insights into biomolecular structure and function

Autor: J, Trewhella, S C, Gallagher, J K, Krueger, J, Zhao

Publikováno v: Science progress. 81

Neutron and X-ray small-angle scattering techniques have made significant advances in their applications in structural molecular biology. They have become important tools for studying the structural basis for biomolecular function, revealing details

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::48a9a541e782e529cbb41b32875e41c7
https://pubmed.ncbi.nlm.nih.gov/9717472

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