Zobrazeno 1 - 10 of 66 pro vyhledávání: '"MERRIFIELD, MR"'
1
Is there a dichotomy in the Dark Matter as well as in the Baryonic Matter properties of ellipticals?
Autor: Napolitano, NR, Capaccioli, M, Arnaboldi, M, Merrifield, MR, Douglas, NG, Kuijken, K, Romanowsky, AJ, Freeman, KC, Ryder, SD, Pisano, DJ, Walker, MA
Publikováno v: DARK MATTER IN GALAXIES, 173-174
STARTPAGE=173;ENDPAGE=174;TITLE=DARK MATTER IN GALAXIES
We have found a correlation between the M/L global gradients and the structural parameters of the luminous components of a sample of 19 early-type galaxies. Such a correlation supports the hypothesis that there is a connection between the dark matter
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=narcis______::efb3f973ed115e68c1a788bd17555462
https://research.rug.nl/en/publications/3a29cfcb-c10f-433d-bb1e-2c273325f678
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2
Early-type galaxy halo dynamics inferred using the PN spectrograph
Autor: Douglas, NG, Romanowsky, AJ, Kuijken, K, Merrifield, MR, Napolitano, NR, Arnaboldi, M, Freeman, KC, Capaccioli, M, Gerhard, O, Ryder, SD, Pisano, DJ, Walker, MA
Publikováno v: DARK MATTER IN GALAXIES, 171-172
STARTPAGE=171;ENDPAGE=172;TITLE=DARK MATTER IN GALAXIES
A new instrument is providing crucial data with which to probe the structure of dark halos in elliptical galaxies.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=narcis______::a014a6d7244f016d0ab268e16c951c4b
https://research.rug.nl/en/publications/3283c7e6-81d5-4c13-a3d7-9244947f9514
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3
Modern techniques in galaxy kinematics: Results from planetary nebula spectroscopy
Autor: Romanowsky, AJ, Douglas, NG, Kuijken, K, Arnaboldi, M, Gerssen, J, Merrifield, MR, Kwok, S, Dopita, M, Sutherland, R
Publikováno v: PLANETARY NEBULAE: THEIR EVOLUTION AND ROLE IN THE UNIVERSE, 639-640
STARTPAGE=639;ENDPAGE=640;TITLE=PLANETARY NEBULAE: THEIR EVOLUTION AND ROLE IN THE UNIVERSE
We have observed planetary nebulae (PNe) in several early-type galaxies using new techniques on 4- to 8-meter-class telescopes. We obtain the first large data sets (greater than or similar to 100 velocities each) of PN kinematics in galaxies at great
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=narcis______::dc3f0c9189bb913a2dc8fe2c239070f5
https://research.rug.nl/en/publications/58ef9c9f-32f4-4b68-997b-06bce47ba3c1
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4
Dynamical constraints on early-type galaxy halos
Autor: Romanowsky, AJ, Arnaboldi, M, Douglas, NG, Kuijken, K, Merrifield, MR, Freeman, KC, Gerssen, J, AvilaReese, Firmani, C, Frenk, CS, Allen, YC
Publikováno v: GALAXY EVOLUTION: THEORY AND OBSERVATIONS, 45-45
STARTPAGE=45;ENDPAGE=45;TITLE=GALAXY EVOLUTION: THEORY AND OBSERVATIONS
Much insight into the formation of early-type galaxies (ellipticals and SOs) can be gained through study of their halo properties (mass distribution, angular momenta, orbit structure).
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=narcis______::b1f789d87f3344a911268d61aa256a19
https://research.rug.nl/en/publications/0b6f5bae-6f7d-478c-882e-630cee4a7549
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5
Mass distributions in early-type galaxy halos
Autor: Romanowsky, AJ, Douglas, NG, Kuijken, K, Merrifield, MR, Arnaboldi, M, Freeman, KC, Taylor, K, Bender, T, Renzini, A
Publikováno v: MASS OF GALAXIES AT LOW AND HIGH REDSHIFT, 72-73
STARTPAGE=72;ENDPAGE=73;TITLE=MASS OF GALAXIES AT LOW AND HIGH REDSHIFT
One of the most promising avenues for determining the distribution of mass in the outer parts of early-type galaxies is through the kinematics of planetary nebulae (PNe). We have used new techniques and instrumentation on the WHT and the VLT to obtai
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=narcis______::b73cee302b4576a29d5a830e558a8014
https://research.rug.nl/en/publications/414b5021-aa6e-4035-8c88-bce030185548
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6
Hidden bars and boxy bulges
Autor: Merrifield, MR, Kuijken, K
Publikováno v: Astronomy & astrophysics, 345(3), L47-L50. EDP Sciences
It has been suggested that the boxy and peanut-shaped bulges found in some edge-on galaxies are galactic bars viewed from the side. We investigate this hypothesis by presenting emission-line spectra for a sample of 10 edge-on galaxies that display a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=narcis______::cf3b5717054b98a43b1cf8fffba59358
https://research.rug.nl/en/publications/50a6d5dd-a33f-4e22-a5ec-62cb86772af7
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8
Measuring galaxy potentials using shell kinematics
Autor: Merrifield, MR, Kuijken, K
Publikováno v: Monthly Notices of the Royal Astronomical Society, 297(4), 1292-1296. Oxford University Press
We show that the kinematics of the shells seen around some elliptical galaxies provide a new, independent means for measuring the gravitational potentials of elliptical galaxies out to large radii. A numerical simulation of a set of shells formed in
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=narcis______::118271c34a3219aa33cac1c76a0fe12d
https://research.rug.nl/en/publications/d84f1486-b1cc-4e15-bf64-c0c7415e3ccd
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9
THE PATTERN SPEED OF THE BAR IN NGC-936
Autor: MERRIFIELD, MR, KUIJKEN, K
Publikováno v: Monthly Notices of the Royal Astronomical Society, 274(3), 933-938. Oxford University Press
We have used the Tremaine-Weinberg method to measure the angular speed of rotation for the bar in the SBO galaxy NGC 936. With this technique, the bar's pattern speed, Omega(p), can be derived from the luminosity and stellar-kinematic information in
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=narcis______::0d2f19374b97b32a5f6dc01a1c0ac8b0
https://research.rug.nl/en/publications/99f89a6a-1691-49e9-9f6a-c08ca3c3d48f
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10
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