Zobrazeno 1 - 10
of 232
pro vyhledávání: '"Huchra, John P."'
We perform aperture photometry and profile fitting on 419 globular cluster (GC) candidates with mV \leq 23 mag identified in Hubble Space Telescope Advanced Camera for Surveys BVI imaging, and estimate the effective radii of the clusters. We identify
Externí odkaz:
http://arxiv.org/abs/1108.1837
Autor:
Huchra, John P., Macri, Lucas M., Masters, Karen L., Jarrett, Thomas H., Berlind, Perry, Calkins, Michael, Crook, Aidan C., Cutri, Roc, Erdogdu, Pirin, Falco, Emilio, George, Teddy, Hutcheson, Conrad M., Lahav, Ofer, Mader, Jeff, Mink, Jessica D., Martimbeau, Nathalie, Schneider, Stephen, Skrutskie, Michael, Tokarz, Susan, Westover, Michael
We present the results of the 2MASS Redshift Survey (2MRS), a ten-year project to map the full three-dimensional distribution of galaxies in the nearby Universe. The 2 Micron All-Sky Survey (2MASS) was completed in 2003 and its final data products, i
Externí odkaz:
http://arxiv.org/abs/1108.0669
Autor:
Davis, Marc, Nusser, Adi, Masters, Karen, Springob, Christopher, Huchra, John P., Lemson, Gerard
(abridged) We perform a reconstruction of the cosmological large scale flows in the nearby Universe using two complementary observational sets. The first, the SFI++ sample of Tully-Fisher (TF) measurements of galaxies, provides a direct probe of the
Externí odkaz:
http://arxiv.org/abs/1011.3114
Autor:
Masci, Frank, Cutri, Roc, Francis, Paul, Nelson, Brant, Huchra, John, Jones, D. Heath, Colless, Matthew, Saunders, Will
The Two Micron All-Sky Survey (2MASS) has provided a uniform photometric catalog to search for previously unknown red AGN and QSOs. We have extended the search to the southern equatorial sky by obtaining spectra for 1182 AGN candidates using the 6dF
Externí odkaz:
http://arxiv.org/abs/1007.1676
Autor:
Nantais, Julie B., Huchra, John P.
We obtained spectra of 74 globular clusters in M81. These globular clusters had been identified as candidates in an HST ACS I-band survey. 68 of these 74 clusters lie within 7' of the M81 nucleus. 62 of these clusters are newly spectroscopically conf
Externí odkaz:
http://arxiv.org/abs/0912.2119
Autor:
Trump, Jonathan R., Impey, Chris D., Taniguchi, Yoshi, Brusa, Marcella, Civano, Francesca, Elvis, Martin, Gabor, Jared M., Jahnke, Knud, Kelly, Brandon C., Koekemoer, Anton M., Nagao, Tohru, Salvato, Mara, Shioya, Yasuhiro, Capak, Peter, Huchra, John P., Kartaltepe, Jeyhan S., Lanzuisi, Giorgio, McCarthy, Patrick J., Maineri, Vincenzo, Scoville, Nick Z.
Publikováno v:
Astrophys.J.706:797-809,2009
We present infrared, optical, and X-ray data of 48 X-ray bright, optically dull AGNs in the COSMOS field. These objects exhibit the X-ray luminosity of an active galactic nucleus (AGN) but lack broad and narrow emission lines in their optical spectru
Externí odkaz:
http://arxiv.org/abs/0910.2672
We have obtained velocity dispersions from Keck high-resolution integrated spectroscopy of ten M31 globular clusters (GCs), including three candidate intermediate-age GCs. We show that these candidates have the same V-band mass-to-light (M/L_V) ratio
Externí odkaz:
http://arxiv.org/abs/0906.0397
Autor:
Trump, Jonathan R., Impey, Chris D., Kelly, Brandon C., Elvis, Martin, Merloni, Andrea, Bongiorno, Angela, Gabor, Jared, Hao, Heng, McCarthy, Patrick J., Huchra, John P., Brusa, Marcella, Cappelluti, Nico, Koekemoer, Anton, Nagao, Tohru, Salvato, Mara, Scoville, Nick Z.
Publikováno v:
Astrophys.J.700:49-55,2009
We present black hole masses and accretion rates for 182 Type 1 AGN in COSMOS. We estimate masses using the scaling relations for the broad Hb, MgII, and CIV emission lines in the redshift ranges 0.16
Externí odkaz:
http://arxiv.org/abs/0905.1123
Autor:
Jones, D. Heath, Read, Mike A., Saunders, Will, Colless, Matthew, Jarrett, Tom, Parker, Quentin, Fairall, Anthony, Mauch, Thomas, Sadler, Elaine, Watson, Fred, Burton, Donna, Campbell, Lachlan, Cass, Paul, Croom, Scott, Dawe, John, Fiegert, Kristin, Frankcombe, Leela, Hartley, Malcolm, Huchra, John, James, Dionne, Kirby, Emma, Lahav, Ofer, Lucey, John, Mamon, Gary, Moore, Lesa, Peterson, Bruce, Prior, Sayuri, Proust, Dominique, Russell, Ken, Safouris, Vicky, Wakamatsu, Ken-ichi, Westra, Eduard, Williams, Mary
We report the final redshift release of the 6dF Galaxy Survey, a combined redshift and peculiar velocity survey over the southern sky (|b|>10 deg). Its 136,304 spectra have yielded 110,256 new extragalactic redshifts and a new catalogue of 125,071 ga
Externí odkaz:
http://arxiv.org/abs/0903.5451
Autor:
Trump, Jonathan R., Impey, Chris D., Elvis, Martin, McCarthy, Patrick J., Huchra, John P., Brusa, Marcella, Salvato, Mara, Capak, Peter, Cappelluti, Nico, Civano, Francesca, Comastri, Andrea, Gabor, Jared, Hao, Heng, Hasinger, Gunther, Jahnke, Knud, Kelly, Brandon C., Lilly, Simon J., Schinnerer, Eva, Scoville, Nick Z., Smolcic, Vernesa
Publikováno v:
Astrophys.J.696:1195-1212,2009
We present optical spectroscopy for an X-ray and optical flux-limited sample of 677 XMM-Newton selected targets covering the 2 deg^2 COSMOS field, with a yield of 485 high-confidence redshifts. The majority of the spectra were obtained over three sea
Externí odkaz:
http://arxiv.org/abs/0811.3977