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Now showing items 436-455 of 761

New results from the Magellan IMACS spectroscopic Ly[alpha] survey: NICMOS observations of Ly[alpha] emitters at z = 5.7

Sawicki, Marcin, 1969-; Henry, Alaina L.; Martin, Crystal L.; Dressler, Alan; McCarthy, Patrick (American Astronomical SocietyIOP Publishing, 2010-08-10)

We present NICMOS J[subscript 110] (rest-frame 1200–2100 [Angstrom]) observations of the three z = 5.7 Ly[alpha] emitters discovered in the blind multislit spectroscopic survey by Martin et al. These images confirm the ...
New slowly pulsating B stars in the field of the young open cluster NGC 2244 discovered by the MOST photometric satellite

Guenther, David B.; Gruber, D.; Saio, H.; Kuschnig, R.; Fossati, L.; Handler, G.; Zwintz, K.; Weiss, W. W.; Matthews, J. M.; Moffat, A. F. J. (Oxford University Press, 2012-02)

During two weeks of nearly continuous optical photometry of the young open cluster NGC 2244 obtained by the Microvariability and Oscillations of STars (MOST) satellite,we discovered two new slowly pulsating B (SPB) stars, ...
A new synthetic model for asymptotic giant branch stars

Izzard, Robert G.; Tout, Christopher A.; Karakas, A. I.; Pols, Onno R. (Royal Astronomical SocietyOxford University Press, 2004)

We present a synthetic model for thermally pulsing asymptotic giant branch (TPAGB) evolution constructed by fitting expressions to full evolutionary models in the metallicity range 0.0001 [less than or equal to] Z [less ...
New trichomycetes from western China

Strongman, Douglas Blair, 1956-; Wang, Juan; Xu, Shengquan (Mycological Society of America, 2010-01)

Data on trichomycete biodiversity in China is expanded with the description of three new fungal species, Legeriomyces grandis, Legeriosimilis elegans, Smittium shaanxiense, and a protist, Paramoebidium bacillare. The ...
The Next Generation Virgo Cluster Survey (NGVS). I. Introduction to the survey

Ferrarese, Laura; Cote, Patrick; Cuillandre, Jean-Charles; Gwyn, S. D. J.; Peng, Eric W.; MacArthur, Lauren A.; Duc, Pierre-Alain; Boselli, A.; Mei, Simona; Erben, Thomas; Sawicki, Marcin, 1969- (American Astronomical SocietyIOP Publishing, 2012-05)

The Next Generation Virgo Cluster Survey (NGVS) is a program that uses the 1 deg[superscript 2] MegaCam instrument on the Canada–France–Hawaii Telescope to carry out a comprehensive optical imaging survey of the Virgo ...
The Next Generation Virgo Cluster Survey. XV. The photometric estimation for background sources

Raichoor, A.; Mei, S.; Erben, T.; Hildebrandt, H.; Huertas-Company, M.; Ilbert, O.; Licitra, R.; Ball, N. M.; Boissier, S.; Boselli, A.; Sawicki, Marcin, 1969- (American Astronomical SocietyIOP Publishing, 2014-12-20)

The Next Generation Virgo Cluster Survey (NGVS) is an optical imaging survey covering 104 deg[superscript 2] centered on the Virgo cluster. Currently, the complete survey area has been observed in the u[superscript ∗] giz ...
nIFTy galaxy cluster simulations – I. Dark matter and non-radiative models

Sembolini, Federico; Yepes, Gustavo; Pearce, Frazer R.; Knebe, Alexander; Kay, Scott T.; Power, Chris; Cui, Weiguang; Beck, Alexander M.; Borgani, Stefano; Vecchia, Claudio Dalla; Thacker, Robert John, 1970- (Oxford University Press, 2016-04-21)

We have simulated the formation of a galaxy cluster in a [lambda] cold dark matter universe using 13 different codes modelling only gravity and non-radiative hydrodynamics (RAMSES, ART, AREPO, HYDRA and nine incarnations ...
nIFTy galaxy cluster simulations – IV. Quantifying the influence of baryons on halo properties

Cui, Weiguang; Power, Chris; Knebe, Alexander; Kay, Scott T.; Sembolini, Federico; Elahi, Pascal J.; Yepes, Gustavo; Pearce, Frazer; Cunnama, Daniel; Beck, Alexander M.; Thacker, Robert John, 1970- (Oxford University Press, 2016-06-01)

Building on the initial results of the nIFTy simulated galaxy cluster comparison, we compare and contrast the impact of baryonic physics with a single massive galaxy cluster, run with 11 state-of-the-art codes, spanning ...
Nitrogen ligands on a phosphinic Lewis acceptor including a 2,2'-dipyridyl chelate complex

Burford, Neil; Cameron, T. Stanley; Robertson, Katherine N.; Phillips, Andrew D.; Jenkins, Hilary A. (Royal Society of Chemistry, 2000)

In the context of the developing coordination chemistry of lone pair bearing phosphinic centers as acceptors, synthesis and characterisation for new complexes of the phosphadiazonium cation with nitrogen donors are ...
NLTE AND LTE Lick indices for red giants from [Fe/H] 0.0 TO −6.0 AT SDSS AND IDS spectral resolution

Short, C. Ian (Christopher Ian), 1965-; Young, Mitchell E.; Layden, Nicholas (American Astronomical Society, 2015-09-01)

We investigate the dependence of the complete system of 22 Lick indices on overall metallicity scaled from solar abundances, [M/H], from the solar value, 0.0, down to the extremely metal-poor (XMP) value of −6.0, for ...
Non-detection of previously reported transits of HD 97658b with MOST photometry

Dragomir, Diana; Matthews, Jaymie M.; Howard, Andrew W.; Antoci, Victoria; Henry, Gregory W.; Guenther, David B.; Johnson, John A.; Kuschnig, Rainer; Marcy, Geoffrey W.; Moffat, Anthony F. J. (American Astronomical Society, 2012-11-10)

The radial velocity-discovered exoplanet HD 97658b was recently announced to transit, with a derived planetary radius of 2.93 ± 0.28 R⊕. As a transiting super-Earth orbiting a bright star, this planet would make an attractive ...
Non-local thermodynamic equilibrium 1.5D modeling of red giant stars

Young, Mitchell E.; Short, C. Ian (Christopher Ian), 1965- (IOP Publishing, 2014-05-20)

Spectra for two-dimensional (2D) stars in the 1.5D approximation are created from synthetic spectra of one-dimensional (1D) non-local thermodynamic equilibrium (NLTE) spherical model atmospheres produced by the PHOENIX ...
Nonradial p-modes in the G9.5 giant [epsilon] Ophiuchi? Pulsation model fits to MOST photometry

Kallinger, T.; Guenther, David B.; Matthews, J. M.; Weiss, W. W.; Huber, D.; Kuschnig, R.; Moffat, A. F. J.; Rucinski, S. M.; Sasselov, D. (European Southern ObservatoryEDP Sciences, 2008)

The G9.5 giant [epsilon] Oph shows evidence of radial p-mode pulsations in both radial velocity and luminosity. We re-examine the observed frequencies in the photometry and radial velocities and find a best model fit to ...
Nonthermal X-ray emission: an alternative to cluster cooling flows?

McCarthy, Ian G.; West, Michael J.; Welch, Gary A. (American Astronomical SocietyIOP Publishing, 2002-03-10)

We report the results of experiments aimed at reducing the major problem with cooling flow models of rich cluster X-ray sources, i.e., the fact that most of the cooled gas or its products have not been found. Here we show ...
A novel demonstration of induced EMF

Lonc, William, 1930- (American Association of Physics Teachers, 1993-01)

There is no abstract available for this article.
A novel method for the measurement of half-lives and decay branching ratios of exotic nuclei

Miskun, Ivan; Dickel, Timo; Mardor, Israel; Hornung, Christine; Amanbayev, Daler; San Andres, Samuel Ayet; Bergmann, Julian; Ebert, Jens; Geissel, Hans; Gorska, Magdalena; Greiner, Florian; Haettner, Emma; Plaß, Wolfgang R.; Purushothaman, Sivaji; Scheidenberger, Christoph; Rink, Ann-Kathrin; Weick, Helmut; Bagchi, Soumya; Constantin, Paul; Kaur, Satbir; Lippert, Wayne; Mei, Bo; Moore, Iain; Otto, Jan-Hendrick; Pietri, Stephane; Pohjalainen, Ilkka; Prochazka, Andrej; Rappold, Christophe; Reiter, Moritz P.; Tanaka, Yoshiki K.; Winfield, John S. (SpringerSpringer Berlin Heidelberg, 2019-09-04)

A novel method for simultaneous measurement of masses, Q-values, isomer excitation energies, half-lives and decay branching ratios of exotic nuclei has been demonstrated. The method includes first use of a stopping cell ...
Novel Third‐Law demonstration

Lonc, William, 1930- (American Association of Physics TeachersAmerican Institute of Physics, 1995-02)

Demonstrates Newton's third law of motion in a novel way. Description of requirements; Discussion with respect to horizontal and vertical orientations of the"line of action". Low-cost demonstration..
The nuclear environment of the NLS1 Mrk 335: Obscuration of the X-ray line emission by a variable outflow

Parker, M. L.; Longinotti, A. L.; Schartel, N.; Grupe, D.; Komossa, S.; Kriss, G.; Fabian, Andrew C.; Gallo, Luigi C.; Harrison, F. A.; Jiang, J.; Kara, E.; Krongold, Y.; Matzeu, G. A.; Pinto, C.; Santos-Lleo, M. (Royal Astronomical SocietyOxford University Press, 2019-09-12)

We present XMM–Newton, NuSTAR, Swift, and Hubble Space Telescope observations of the Narrow-line Seyfert 1 galaxy Mrk 335 in a protracted low state in 2018 and 2019. The X-ray flux ...
Nuclear force imprints revealed on the elastic scattering of protons with 10C

Kumar, A.; Kanungo, R.; Calci, A.; Navratil, P.; Sanetullaev, A.; Alcorta, M.; Bildstein, V.; Christian, G.; Davids, B.; Dohet-Eraly, J.; Fallis, J.; Gallant, A. T.; Hackman, G.; Hadinia, B.; Hupin, G.; Ishimoto, S.; Krucken, R.; Laffoley, A. T.; Lighthall, J.; Miller, D.; Quaglioni, S.; Randhawa, J. S.; Rand, E. T.; Rojas, A.; Roth, R.; Shotter, A.; Tanaka, J.; Tanihata, I.; Unsworth, C. (American Physical Society, 2017-06-28)

How does nature hold together protons and neutrons to form the wide variety of complex nuclei in the Universe? Describing many-nucleon systems from the fundamental theory of quantum chromodynamics has been the greatest ...
Nuclear spallation in active galaxies

Gallo, Luigi. C.; Randhawa, J. S.; Waddell, S. G. H.; Hani, M. H.; Garcia, J. A.; Reynolds, C.S. (Oxford University Press, 2019-01-25)

A number of works point to the presence of narrow emission features at unusual energies in the X-ray spectra of active galactic nuclei or to potentially low iron abundances as possible evidence for the spallation of iron. ...