Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Stacy McGaugh"'
Publikováno v:
The Astrophysical Journal Letters, Vol 969, Iss 1, p L3 (2024)
We use a new deprojection formula to infer the gravitational potential around isolated galaxies from weak gravitational lensing. The results imply circular velocity curves that remain flat for hundreds of kiloparsecs, greatly extending the classic re
Externí odkaz:
https://doaj.org/article/e1474cbd08244a7584bf479b06147b6e
Publikováno v:
The Astronomical Journal, Vol 168, Iss 1, p 19 (2024)
We present Wide-field Infrared Survey Explorer (WISE) W1 photometry of the Spitzer Photometry and Accurate Rotation Curves sample. The baseline of near-IR fluxes is established for use by stellar mass models, a key component to the baryonic Tully–F
Externí odkaz:
https://doaj.org/article/1906513d34be488f9a79edacaf2a221c
Autor:
Stacy McGaugh
Publikováno v:
Galaxies, Vol 8, Iss 2, p 35 (2020)
A review is given of a priori predictions made for the dynamics of rotating galaxies. One theory—MOND—has had many predictions corroborated by subsequent observations. While it is sometimes possible to offer post hoc explanations for these observ
Externí odkaz:
https://doaj.org/article/113b36495b96470e901669b6aa21d8c6
Publikováno v:
Advances in Astronomy, Vol 2011 (2011)
This paper presents optical and Hα imaging for a large sample of LSB galaxies selected from the PSS-II catalogs (Schombert et al., 1992). As noted in previous work, LSB galaxies span a range of luminosities (−10>𝑀𝑉>−20) and sizes (0.3kpc
Externí odkaz:
https://doaj.org/article/0c8be773a6d24f87a48ce0f304a05b14
We make rotation curve fits to test the superfluid dark matter model. In addition to verifying that the resulting fits match the rotation curve data reasonably well, we aim to evaluate how satisfactory they are with respect to two criteria, namely, h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60406c08e44372bbfb32f7e9a25ef68f
http://arxiv.org/abs/2201.07282
http://arxiv.org/abs/2201.07282
Autor:
Stacy McGaugh
Publikováno v:
Research Notes of the AAS. 7:20
Tension between local determinations of the Hubble constant and the value found in fits to the cosmic microwave background (CMB) acoustic power spectrum have emerged as finer angular scales (higher multipoles ℓ) have been measured in the latter. In
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1f5dfd2381ce9d003fa0b1894cc5fbb
https://doi.org/10.3847/2515-5172/acba9a
https://doi.org/10.3847/2515-5172/acba9a
Autor:
Stacy McGaugh, Christof Aegerter
Publikováno v:
Science. 318:568-570
In his Perspective “Seeing through Dark Matter” (3 August, p. 607), Stacy McGaugh describes the success of a modified Newtonian dynamics (MOND) in explaining the flat rotation curves of galaxies without invoking dark matter. In addition to noting
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e5d2cb768bf1dd6813f86701998995e
https://doi.org/10.1126/science.318.5850.568
https://doi.org/10.1126/science.318.5850.568
Galaxies are composed of baryonic stars and gas embedded in dark matter halos. Here I briefly review two aspects of the connection between baryons and their halos. (1) The observed baryon content of galaxies falls short of the cosmic baryon fraction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09e32ae99f2d5d2da69a5f06271faab3
Autor:
Stacy, McGaugh
Publikováno v:
Science (New York, N.Y.). 317(5838)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::d4a54a3941c4ddda2abee4fca0dd08f6
https://pubmed.ncbi.nlm.nih.gov/17962540
https://pubmed.ncbi.nlm.nih.gov/17962540
Autor:
Stacy McGaugh
Publikováno v:
Web of Science
I describe the disk mass-rotation velocity relation which underpins the familiar luminosity-linewidth relation. Continuity of this relation favors nearly maximal stellar mass-to-light ratios. This contradicts the low mass-to-light ratios implied by t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c61eb1a21949740f7f74c8152884ec7