Showing 2002Show all

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astro-ph2002★ 188 cited

The 2dF Galaxy Redshift Survey: the luminosity function of cluster galaxies

Roberto De Propris, M. Colless, S. Driver +27

We have determined the composite luminosity function (LF) for galaxies in 60 clusters from the 2dF Galaxy Redshift Survey. The LF spans the range , and is…

astro-ph2002★ 104 cited

Interstellar Deuterium, Nitrogen, and Oxygen Abundances Toward GD 246, WD 2331475, HZ 21, and Lan 23: Results from the FUSE Mission

Cristina M. Oliveira, Guillaume Hebrard, J. Christopher Howk +3

The interstellar abundances of D I, N I, and O I in the local ISM are studied us ing high-resolution spectra of four hot white dwarfs. The spectra of GD 246, WD 2331475, HZ 21,…

astro-ph2002★ 90 cited

Constraints on the Ionization Balance of Hot-Star Winds from FUSE Observations of O Stars in the Large Magellanic Cloud

D. Massa, A. W. Fullerton, G. Sonneborn +1

We use a Sobolev with Exact Integration model to analyze the winds lines of 25 LMC O stars. The data include FUSE profiles of C III, N III, S IV, P V, S VI, and O VI and IUE or HST…

astro-ph2002

The Wind of the B[e] Supergiant Hen S22 Viewed through a Reflection Nebula in DEM L 106

Y. -H. Chu, C. -H. R. Chen, C. Danforth +5

Narrow-band HST WFPC2 images reveal a bow-shock-like halo around the HII region N30B toward the B[e] supergiant Hen S22 located within the larger DEM L 106 nebula in the Large Mage…

astro-ph2002★ 9 cited

The Hubble Deep Field South Flanking Fields

Ray A. Lucas, Stefi A. Baum, Thomas M. Brown +22

As part of the Hubble Deep Field South program, a set of shorter 2-orbit observations were obtained of the area adjacent to the deep fields. The WFPC2 flanking fields cover a conti…

astro-ph2002★ 29 cited

Far-Ultraviolet & Halpha Spectroscopy of SNR0057-7226 in the SMC HII Region N66

Charles Danforth, Ravi Sankrit, William Blair +2

N66/NGC346 is the largest and brightest HII region in the Small Magellanic Cloud and contains at least one known supernova remnant SNR0057-7226. Optical emission from the remnant i…

hep-ph2002★ 99 cited

Grand Unification in RS1

Kaustubh Agashe, Antonio Delgado, Raman Sundrum

We study unification in the Randall-Sundrum scenario for solving the hierarchy problem, with gauge fields and fermions in the bulk. We calculate the one-loop corrected low-energy e…

math.SG2002

Asymptotics of almost holomorphic sections of ample line bundles on symplectic manifolds: an addendum

B. Shiffman, S. Zelditch

We define a Gaussian measure on the space of almost holomorphic sections of powers of an ample line bundle over a symplectic manifold , and calculate th…

astro-ph2002★ 51 cited

Deuterium Toward Two Milky Way Disk Stars: Probing Extended Sight Lines with the Far Ultraviolet Spectroscopic Explorer

Charles G. Hoopes, Kenneth R. Sembach, Guillaume Hebrard +2

We have carried out an investigation of the abundance of deuterium along two extended sight lines through the interstellar medium (ISM) of the Galactic disk. The data include Far U…

astro-ph2002★ 463 cited

The Evolution of the Global Stellar Mass Density at 0 < z < 3

Mark Dickinson, Casey Papovich, Henry C. Ferguson +1

The build-up of stellar mass in galaxies is the consequence of their past star formation and merging histories. Here we report measurements of rest-frame optical light and calculat…

astro-ph2002★ 49 cited

An Ultra-High-Resolution Survey of the Interstellar ^7Li-to-^6Li Isotope Ratio in the Solar Neighborhood

David C. Knauth, S. R. Federman, David L. Lambert

In an effort to probe the extent of variations in the interstellar ^7Li/^6Li ratio seen previously, ultra-high-resolution (R ~ 360,000), high signal-to-noise spectra of stars in th…

astro-ph2002★ 49 cited

How many Hipparcos Variability-Induced Movers are genuine binaries?

D. Pourbaix, I. Platais, S. Detournay +3

Hipparcos observations of some variable stars, and especially of long-period (e.g. Mira) variables, reveal a motion of the photocenter correlated with the brightness variation ({va…

astro-ph2002★ 56 cited

Highly-Ionized Gas in the Galactic Halo: A FUSE Survey of O VI Absorption toward 22 Halo Stars

J. Zsargo, K. R. Sembach, J. C. Howk +1

Far Ultraviolet Spectroscopic Explorer spectra of 22 Galactic halo stars are studied to determine the amount of O VI in the Galactic halo between ~0.3 and \~10 kpc from the Galacti…

astro-ph2002★ 311 cited

The overdensities of galaxy environments as a function of luminosity and color

David W. Hogg, Michael R. Blanton, Daniel J. Eisenstein +9

We study the mean environments of galaxies in the Sloan Digital Sky Survey as a function of rest-frame luminosity and color. Overdensities in galaxy number are estimated in $8 h^{-…

astro-ph2002★ 116 cited

Average spectra of massive galaxies in the SDSS

Daniel J. Eisenstein, David W. Hogg, Masataka Fukugita +17

We combine Sloan Digital Sky Survey spectra of 22,000 luminous, red, bulge-dominated galaxies to get high S/N average spectra in the rest-frame optical and ultraviolet (2600A to 70…

astro-ph2002★ 816 cited

The 2dF Galaxy Redshift Survey: correlation functions, peculiar velocities and the matter density of the Universe

E. Hawkins, S. Maddox, S. Cole +27

We present a detailed analysis of the two-point correlation function, from the 2dF Galaxy Redshift Survey (2dFGRS). We estimate the redshift-space correlation function, xi(s), from…

cond-mat.str-el2002★ 50 cited

Structure of end states for a Haldane Spin Chain

M. Kenzelmann, G. Xu, I. A. Zaliznyak +6

Inelastic neutron scattering was used to probe edge states in a quantum spin liquid. The experiment was performed on finite length antiferromagnetic spin-1 chains in Y_2BaNi_{1-x}M…

astro-ph2002★ 65 cited

Is there really a Black Hole at the center of NGC 4041? - Constraints from gas kinematics

A. Marconi, D. J. Axon, A. Capetti +16

We present HST/STIS spectra of the Sbc spiral galaxy NGC 4041 which were used to map the velocity field of the gas in its nuclear region. We detect the presence of a compact (r~0.4…

hep-ex2002★ 59 cited

Search for Long-lived Charged Massive Particles in anti-p p Collisions at s**1/2 = 1.8 TeV

D. Acosta

We report a search for production of long-lived charged massive particles in a data sample of 90 pb^{-1} of \sqrt{s} = 1.8 TeV p anti-p collisions recorded by the Collider Detector…

astro-ph2002★ 1 cited

Stellar population gradients in Seyfert 2 galaxies

Thaisa Storchi-Bergmann, Daniel I. Raimann, R. Gonzalez Delgado +4

We study the variation of the stellar population properties as a function of distance from the nucleus for a sample of 35 Seyfert 2 galaxies using the technique of stellar populati…

cs.DB2002★ 59 cited

SkyQuery: A WebService Approach to Federate Databases

Tanu Malik, Alex S. Szalay, Tamas Budavari +1

Traditional science searched for new objects and phenomena that led to discoveries. Tomorrow's science will combine together the large pool of information in scientific archives an…

astro-ph2002★ 49 cited

Massive Ellipticals at High Redshift: NICMOS Imaging of Z~1 Radio Galaxies

A. W. Zirm, M. Dickinson, A. Dey

We present deep, continuum images of eleven high-redshift (0.811 < z < 1.875) 3CR radio galaxies observed with NICMOS. Our images probe the rest-frame optical light where stars are…

astro-ph2002★ 39 cited

Ionized Gas in the First 10 kpc of the Interstellar Galactic Halo

J. Christopher Howk, Kenneth R. Sembach, Blair D. Savage

We present FUSE observations of the post-asymptotic giant branch star von Zeipel 1128 (l=42.5, b=+78.7; z=10.0 kpc), located in the globular cluster Messier 3. The FUSE observation…

astro-ph2002★ 1 cited

New {\it Chandra} Results on Seyfert I galaxies: Fe-K lines

U. Padmanabhan, T. Yaqoob

We present measurements of the Fe-K line for nine Seyfert I galaxies using Chandra High Energy Transmission Grating Spectrometer (HETGS) data. The centroid energies are narrowly di…