Zobrazeno 1 - 10
of 143
pro vyhledávání: '"S. A. GALLAGHER"'
Autor:
M. J. Cramwinckel, L. Woelders, E. P. Huurdeman, F. Peterse, S. J. Gallagher, J. Pross, C. E. Burgess, G.-J. Reichart, A. Sluijs, P. K. Bijl
Publikováno v:
Climate of the Past, Vol 16, Pp 1667-1689 (2020)
Global climate cooled from the early Eocene hothouse (∼52–50 Ma) to the latest Eocene (∼34 Ma). At the same time, the tectonic evolution of the Southern Ocean was characterized by the opening and deepening of circum-Antarctic gateways, whic
Externí odkaz:
https://doaj.org/article/b1ce9d6ee8fd43ccbd499c7b2eb9a13d
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
Autor:
Trung Ha, Cooper Dix, Brandon M. Matthews, Ohad Shemmer, Michael S. Brotherton, Adam D. Myers, Gordon T. Richards, Jaya Maithil, Scott F. Anderson, W. N. Brandt, Aleksandar M. Diamond-Stanic, Xiaohui Fan, S. C. Gallagher, Richard Green, Paulina Lira, Bin Luo, Hagai Netzer, Richard M. Plotkin, Jessie C. Runnoe, Donald P. Schneider, Michael A. Strauss, Benny Trakhtenbrot, Jianfeng Wu
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
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 22, Iss 3, Pp n/a-n/a (2021)
Abstract Accurate dating of marine sediments is essential to reconstruct past changes in oceanography and climate. Benthic foraminiferal oxygen isotope series from such sediments record long‐term changes in global ice volume and deep‐water temper
Externí odkaz:
https://doaj.org/article/6e8df50f9220439093494eff86a2e5d1
Autor:
S. J. Gallagher, N. Exon, M. Seton, M. Ikehara, C. J. Hollis, R. Arculus, S. D'Hondt, C. Foster, M. Gurnis, J. P. Kennett, R. McKay, A. Malakoff, J. Mori, K. Takai, L. Wallace
Publikováno v:
Scientific Drilling, Vol 17, Pp 45-50 (2014)
A major International Ocean Discovery Program (IODP) workshop covering scientific ocean drilling in the southwest Pacific Ocean was held in Sydney, Australia, in late 2012. The workshop covered all fields of geoscience, and drilling targets in the ar
Externí odkaz:
https://doaj.org/article/bdd2ce1ca54e4fdcb88aa86520f5f293
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
Publikováno v:
Scientific Drilling, Vol 14, Pp 60-63 (2012)
No abstract available. doi:10.2204/iodp.sd.14.09.2012
Externí odkaz:
https://doaj.org/article/facc2ae18f8f4403842296571dd53baa
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
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
https://doi.org/10.3847/1538-4357/ac886e
Autor:
David De Vleeschouwer, Craig S. Fulthorpe, Willem Renema, Jeroen Groeneveld, S. J. Gallagher, Jeff Salacup, Beth A Christensen, Rebecca Smith, Isla S. Castañeda, Jorijntje Henderiks, Kara Bogus
Publikováno v:
Geological Society of America Abstracts with Programs.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c813ffd871b96da55f13d700ee51bcdf
https://doi.org/10.1130/abs/2018ne-310927
https://doi.org/10.1130/abs/2018ne-310927
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
https://doi.org/10.1093/mnras/stv1697