An HST/WFPC2 survey of bright young clusters in M31. IV. Ages and mass estimates (2009)
Perina, S., Cohen, J. G., Barmby, P., Beasley, M. A., Bellazzini, M., Brodie, J. P., ...
{Aims.} We present the main results of an imaging survey of possible young massive clusters (YMC) in M31 performed with the Wide Field and Planetary Camera2 (WFPC2) on the Hubble Space Telescope...
An HST/WFPC2 Survey of Bright Young Clusters in M31 III. Structural Parameters (2009)
Barmby, P., Perina, S., Bellazzini, M., Cohen, J. G., Hodge, P. W., Huchra, J. P., ...
Surface brightness profiles for 23 M31 star clusters were measured using images from the Wide Field Planetary Camera 2 on the Hubble Space Telescope, and fit to two types of models to determine the...
Star Cluster Candidates in M81 (2009)
Nantais, J. B., Huchra, J. P., McLeod, B., Strader, J., Brodie, J. P.
We present a catalog of extended objects in the vicinity of M81 based a set of 24 Hubble Space Telescope Advanced Camera for Surveys (ACS) Wide Field Camera (WFC) F814W (I-band images. We have found...
Perina, S., Barmby, P., Beasley, M. A., Bellazzini, M., Brodie, J. P., Burstein, D., ...
Aims. We introduce our imaging survey of possible young massive globular clusters in M31 performed with the Wide Field and Planetary Camera 2 (WFPC2) on the Hubble Space Telescope (HST). We obtained...
Perina, S., Barmby, P., Beasley, M. A., Bellazzini, M., Brodie, J. P., Burstein, D., ...
{Aims.} We introduce our imaging survey of possible young massive globular clusters in M31 performed with the Wide Field and Planetary Camera 2 (WFPC2) on the Hubble Space Telescope (HST). We present...
Nearby Spiral Galaxy Globular Cluster Systems II: Globular Cluster Abundances in NGC 300 (2008)
Nantais, J. B., Huchra, J. P., Barmby, P., Olsen, K. A. G.
We present new metallicity estimates for globular cluster candidates in the Sd spiral NGC 300, one of the nearest spiral galaxies outside the Local Group. We have obtained optical spectroscopy for 44...
Optical spectroscopy of type Ia supernovae (2008)
Matheson, T., Kirshner, R. P., Challis, P., Jha, S., Garnavich, P. M., Berlind, P., ...
We present 432 low-dispersion optical spectra of 32 Type Ia supernovae (SNe Ia) that also have well-calibrated light curves. The coverage ranges from 6 epochs to 36 epochs of spectroscopy. Most of...
Optical Spectroscopy of Type Ia Supernovae (2008)
Matheson, T., Kirshner, R. P., Challis, P., Jha, S., Garnavich, P. M., Berlind, P., ...
We present 432 low-dispersion optical spectra of 32 Type Ia supernovae (SNe Ia) that also have well-calibrated light curves. The coverage ranges from 6 epochs to 36 epochs of spectroscopy. Most of...
The reddest ISO-2MASS quasar (2007)
Leipski, C., Haas, M., Siebenmorgen, R., Meusinger, H., Albrecht, M., Cesarsky, C., ...
In the course of the NIR/MIR AGN search combining the 6.7 mu ISOCAM Parallel Survey and 2MASS we have discovered 24 type-1 quasars about a third of which are too red to be discriminated by optical/UV...
Narrow-line AGN in the ISO-2MASS Survey (2007)
Leipski, C., Haas, M., Meusinger, H., Siebenmorgen, R., Chini, R., Drass, H., ...
Context: A long-standing challenge of observational AGN research is to find type 2 quasars, the luminous analogues of Seyfert-2 galaxies. Aims: We search for luminous narrow-line type 2 AGN,...
Brusa, M., Zamorani, G., Comastri, A., Hasinger, G., Cappelluti, N., Civano, F., ...
[ABRIGED] We present the optical identification of a sample of 695 X-ray sources detected in the first 1.3 deg^2 of the XMM-COSMOS survey, down to a 0.5-2 keV (2-10 keV) limiting flux of ~10^-15 erg...
Dusty waves on a starry sea: the mid-infrared view of M31 (2006)
Barmby, P., Ashby, M. L. N., Bianchi, L., Engelbracht, C. W., Gehrz, R. D., Gordon, K. D., ...
Mid-infrared observations of the Andromeda galaxy, M31, obtained with the Infrared Array Camera on board the Spitzer Space Telescope, are presented. The image mosaics cover areas of approximate...
The dipole anisotropy of the 2 Micron All-Sky Redshift Survey (2006)
Erdoğdu, Pirin, Huchra, J. P., Lahav, O., Colless, M., Cutri, R. M., Falco, E., ...
We estimate the acceleration on the Local Group (LG) from the 2 Micron All-Sky Redshift Survey (2MRS). The sample used includes about 23 200 galaxies with extinction-corrected magnitudes brighter...
Hubble Space Telescope Observations of Star Clusters in M101 (2006)
Barmby, P., Kuntz, K. D., Huchra, J. P., Brodie, J. P.
Hubble Space Telescope Advanced Camera for Surveys (ACS) images are used to identify and study star cluster candidates in the nearby spiral galaxy M101. About 3000 round, slightly-resolved cluster...
The Dipole Anisotropy of the 2mass Redshift Survey (2006)
Erdogdu, P., Huchra, J. P., Lahav, O., Colless, M., Cutri, R. M., Falco, E., ...
We estimate the flux weighted acceleration on the Local Group (LG) from the near-infrared Two Micron All Sky Redshift Survey (2MRS). The near-infrared flux weighted dipoles are very robust because...
The dipole anisotropy of the 2 Micron All-Sky Redshift Survey (2006)
Erdoğdu, P, Huchra, J. P, Macri, L, Mader, J, Martimbeau, N, Pahre, M, ...
We estimate the acceleration on the Local Group (LG) from the 2 Micron All-Sky Redshift Survey (2MRS). The sample used includes about 23 200 galaxies with extinction-corrected magnitudes brighter...
The dipole anisotropy of the 2 Micron All-Sky Redshift Survey (2006)
Erdoğdu, P, Huchra, J. P, Macri, L, Mader, J, Martimbeau, N, Pahre, M, ...
We estimate the acceleration on the Local Group (LG) from the 2 Micron All-Sky Redshift Survey (2MRS). The sample used includes about 23 200 galaxies with extinction-corrected magnitudes brighter...
Clavel, J., Schulz, B., Altieri, B., Barr, P., Alloin, D., ...
Mid-infrared images of the Seyfert 1 galaxy Mrk 279 obtained with the ISO satellite are presented together with the results of a one-year monitoring campaign of the 2.5-11.7 micron spectrum....
The ISO-2MASS AGN survey: On the type-1 sources (2005)
Leipski, C., Haas, M., Meusinger, H., Siebenmorgen, R., Chini, R., Scheyda, C. M., ...
We combined the ISOCAM Parallel Mode Survey at 6.7 micron (LW2 filter) with the Two Micron All Sky Survey in order to obtain a powerful tool to search for AGN independent of dust extinction. Using...
The Dipole Anisotropy of the 2 Micron All-Sky Redshift Survey (2005)
Erdogdu, P., Huchra, J. P., Lahav, O., Colless, M., Cutri, R. M., Falco, E., ...
We estimate the acceleration on the Local Group (LG) from the Two Micron All Sky Redshift Survey (2MRS). The sample used includes about 23,200 galaxies with extinction corrected magnitudes brighter...
Graham, J. A., Phelps, R. L., Freedman, W. L., Saha, A., Ferarese, L., Stetson, P. B., ...
We report on the discovery and properties of Cepheid variable stars in the barred spiral galaxy NGC 3351 which is a member of the LeoI group of galaxies.
Rawson, D. M., Mould, J. R., Macri, L. M., Huchra, J. P., Kennicutt, R. C., Harding, P., ...
We report on the discovery of Cepheids in the field spiral galaxy NGC3621, based on observations made with the Wide Field and Planetary Camera 2 on board the Hubble Space Telescope (HST). NGC 3621 is...
The HST Key Project on the Extragalactic Distance Scale XI. The Cepheids in NGC 4414 (2004)
Ferrarese, L., Saha, A., Bresolin, F., Kennicutt, R. C. Jr., Stetson, P. B., Graham, J. A., ...
We report the discovery of Cepheid variable stars in the galaxy NGC 4414, as part of the Hubble Space Telescope (HST) key project on the Extragalactic Distance Scale.
The HST Key Project on the Extragalactic Distance Scale XI. The Cepheids in NGC 4414 (2004)
Turner, A., Ferrarese, L., Saha, A., Bresolin, F., Kennicutt, R. C. Jr., Stetson, P. B., ...
We report the Discovery of Cepheid variable stars in the galaxy NGC 4414, as part of the Hubble Space Telescope (HST) Key Project on the Extragalactic Distance Scale. Observations were obtained with...
Stetson, P. B., Saha, A., Ferrarese, L., Rawson, D. M., Ford, H. C., Freedman, W. L., ...
We report on the identification of 255 candidate variable stars in a field located some 1.7 from the center of the late-type spiral galaxy M101 = NGC 5457, based on observations made with the Wide...
The search for red AGN with 2MASS (2004)
Cutri, R. M., Nelson, B. O., Kirkpatrick, J. D., Huchra, J. P., Smith, P. S.
We present the results of a simple, highly efficient 2MASS color-based survey that has already discovered 140 previously unknown red AGN and QSOs. These objects are near-infrared-bright and...
The 2MASS red AGN survey (2004)
Cutri, R., Nelson, B. O., Kirkpatrick, J. D., Huchra, J. P., Smith, P. S.
The nearby universe revealed: 2MASS (2004)
Jarrett, T. H., Huchra, J. P., Schneider, S., Cutri, R., Chester, T.
Spatial Correlation Function of X-ray Selected AGN (2004)
Mullis, C. R., Henry, J. P., Gioia, I. M., Boehringer, H., Briel, U. G., Voges, W., ...
We present a detailed description of the first direct measurement of the spatial correlation function of X-ray selected AGN. This result is based on an X-ray flux-limited sample of 219 AGN discovered...
Burstein, D., Li, Y., Freeman, K. C., Norris, J. E., Bessell, M. S., Bland-Hawthorn, J., ...
The globular cluster (GC) systems of the Milky Way and of our neighboring spiral galaxy, M31, comprise 2 distinct entities, differing in 3 respects. 1. M31 has young GCs, ages from ~100 Myr to 5 Gyr...
Spatial correlation funtion of X-ray-selected active galactic nuclei (2004)
Mullis, C. R., Henry, J. P., Gioia, I. M., Böhringer, H., Briel, U. G., Voges, W., ...
The ROSAT North Ecliptic Pole Survey: The Optical Identifications (2003)
Gioia, I. M., Henry, J. P., Mullis, C. R., Bohringer, H., Briel, U. G., Voges, W., ...
The X-ray data around the North Ecliptic Pole (NEP) of the ROSAT All Sky Survey have been used to construct a contiguous area survey consisting of a sample of 445 individual X-ray sources above a...
The ROSAT North Ecliptic Pole Survey : the optical identifications (2003)
Gioia, I. M., Henry, J. P., Mullis, C. R., Böhringer, H., Briel, U. G., Voges, W., ...
Structural Parameters and Dynamical Masses for Globular Clusters in M33 (2002)
Larsen, S. S., Brodie, J. P., Sarajedini, A., Huchra, J. P.
Using high-dispersion spectra from the HIRES echelle spectrograph on the Keck I telescope, we measure velocity dispersions for 4 globular clusters in M33. Combining the velocity dispersions with...
The Kinematics and Metallicity of the M31 Globular Cluster System (2002)
Perrett, K. M., Bridges, T. J., Hanes, D. A., Irwin, M. J., Brodie, J. P., Carter, D., ...
With the ultimate aim of distinguishing between various models describing the formation of galaxy halos (e.g. radial or multi-phase collapse, random mergers), we have completed a spectroscopic study...
M31 Globular Clusters in the HST Archive: II. Structural Parameters (2002)
Barmby, P., Holland, S., Huchra, J. P.
We analyze the structural parameters of the largest-available sample of spatially resolved extragalactic globular clusters. The images of M31 GCs were found in a search of HST archival data,...
Infrared Mass-to-Light Profile Throughout the Infall Region of the Coma Cluster (2001)
Rines, K., Geller, M. J., Kurtz, M. J., Diaferio, A., Jarrett, T. H., Huchra, J. P.
Using a redshift survey of 1779 galaxies and photometry from the 2-Micron All-Sky Survey (2MASS) covering 200 square degrees, we calculate independent mass and light profiles for the infall region of...
Redshifts for 2410 Galaxies in the Century Survey Region (2001)
Wegner, G., Thorstensen, J. R., Kurtz, M. J., Brown, W. R., Fabricant, D. G., Geller, M. J., ...
The `Century Survey' strip covers 102 square degrees within the limits 8.5h \leq \alpha_{1950} \leq 16.5h, 29.0 degrees \leq \delta_{1950} \leq 30.0 degrees. The strip passes through the Corona...
M31 Globular Clusters in the HST Archive: I. Cluster Detection and Completeness (2001)
Globular clusters at the distance of M31 have apparent angular sizes of a few arcseconds. While many M31 GCs have been detected and studied from ground-based images, the high spatial resolution of...
A Spectroscopic and Photometric Study of Short-Timescale Variability in NGC5548 (2001)
Dietrich, M., Bender, C. F., Bergmann, D. J., Bills, T. E., Bochkarev, N. G., Burenkov, A., ...
Results of a ground-based optical monitoring campaign on NGC5548 in June 1998 are presented. The broad-band fluxes (U,B,V), and the spectrophotometric optical continuum flux F_lambda(5100 A)...
The North Ecliptic Pole Supercluster (2001)
Mullis, C. R., Henry, J. P., Gioia, I. M., Boehringer, H., Briel, U. G., Voges, W., ...
We have used the ROSAT All-Sky Survey to detect a known supercluster at z=0.087 in the North Ecliptic Pole region. The X-ray data greatly improve our understanding of this supercluster's...
Clavel, J., Schulz, B., Altieri, B., Barr, P., Alloin, D., ...
Mid-infrared images of the Seyfert 1 galaxy Mrk 279 obtained with the ISO satellite are presented together with the results of a one-year monitoring campaign of the 2.5-11.7 micron spectrum....
Properties of Globular Cluster Systems in Nearby Early-type Galaxies (2001)
Larsen, S. S., Brodie, J. P., Huchra, J. P., Forbes, D. A., Grillmair, C.
We present a study of globular clusters (GCs) in 17 relatively nearby early-type galaxies, based on deep HST/WFPC2 F555W and F814W images. We compare color distributions, cluster sizes and luminosity...
Cluster Evolution in the ROSAT North Ecliptic Pole Survey (2001)
Gioia, I. M., Henry, J. P., Mullis, C. R., Voges, W., Briel, U. G., Boehringer, H., ...
The deepest region of the ROSAT All-Sky Survey, at the North Ecliptic Pole, has been studied to produce a complete and unbiased X-ray selected sample of clusters of galaxies. This sample is used to...
Macri, L. M., Calzetti, D., Freedman, W. L., Gibson, B. K., Graham, J. A., Huchra, J. P., ...
We present the results of near-infrared observations of extragalactic Cepheids made with the Near Infrared Camera and Multi-Object Spectrometer on board the Hubble Space Telescope. The variables are...
A spectroscopic and photometric study of short-timescale variability in NGC 5548 (2001)
Dietrich, M., Bender, C. F., Bergmann, D. J., Bills, T. E., Bochkarev, N. G., Burenkov, A., ...
Results of a ground-based optical monitoring campaign on NGC 5548 in June 1998 are presented. The broad-band fluxes (U, B, V), and the spectrophotometric optical continuum flux Fλ (5100 Ã )...
Maraston, C., Kissler-Patig, M., Brodie, J. P., Barmby, P., Huchra, J. P.
We have extended the study of the young star clusters observed in the merger remnant galaxy NGC 7252 by obtaining K band photometry for these clusters. Our K band data significantly complement the...
Clavel, J., Schulz, B., Altieri, B., Barr, P., Alloin, D., ...
Mid-infrared images of the Seyfert 1 galaxy Mrk 279 obtained with the ISO satellite are presented together with the results of a one-year monitoring campaign of the 2.5-11.7 micron spectrum....
Clavel, J., Schulz, B., Altieri, B., Barr, P., Alloin, D., ...
Mid-infrared images of the Seyfert 1 galaxy Mrk 279 obtained with the ISO satellite are presented together with the results of a one-year monitoring campaign of the 2.5-11.7 micron spectrum....
Final Results from the Hubble Space Telescope Key Project to Measure the Hubble Constant (2000)
Freedman, W. L., Madore, B. F., Gibson, B. K., Ferrarese, L., Kelson, D. D., Sakai, S., ...
We present here the final results of the Hubble Space Telescope Key Project to measure the Hubble constant. We summarize our method, the results and the uncertainties, tabulate our revised distances,...
The M31 Globular Cluster Luminosity Function (2000)
Barmby, P., Huchra, J. P., Brodie, J. P.
We combine our compilation of photometry of M31 globular cluster and probable cluster candidates with new near-infrared photometry for 30 objects. Using these data we determine the globular cluster...
The K-Band Galaxy Luminosity Function (2000)
Kochanek, C. S., Pahre, M. A., Falco, E. E., Huchra, J. P., Mader, J., Jarrett, T. H, ...
We measured the K-band luminosity function using a complete sample of 4192 morphologically-typed 2MASS galaxies with 7 < K < 11.25 mag spread over 2.12 str. Early-type (T < -0.5) and late-type (T >...
X-Ray and Optical Variability in NGC 4051 and the Nature of Narrow-Line Seyfert 1 Galaxies (2000)
Peterson, B. M., McHardy, I. M., Wilkes, B. J., Berlind, P., Bertram, R., Calkins, M., ...
We report on the results of a three-year program of coordinated X-ray and optical monitoring of the narrow-line Seyfert 1 galaxy NGC 4051. The rapid continuum variations observed in the X-ray spectra...
2MASS Extended Sources in the Zone of Avoidance (2000)
Jarrett, T. H., Chester, T., Cutri, R., Schneider, S., Rosenberg, J., Huchra, J. P., ...
The Two Micron All Sky Survey (2MASS) is now underway and will provide a complete census of galaxies as faint as 13.5 mag (3 mJy) at 2.2 microns for most of the sky, and ~12.1 mag (10 mJy) for...
2MASS Extended Source Catalog: Overview and Algorithms (2000)
Jarrett, T. H., Chester, T., Cutri, R., Schneider, S., Skrutskie, M., Huchra, J. P.
The 2 Micron All-Sky Survey (2MASS) will observe over one-million galaxies and extended Galactic sources covering the entire sky at wavelengths between 1 and 2 microns. The survey catalog will have...
Boehringer, H., Voges, W., Huchra, J. P., McLean, B., Giacconi, R., Rosati, P., ...
In the construction of an X-ray selected sample of galaxy clusters for cosmological studies, we have assembled a sample of 495 X-ray sources found to show extended X-ray emission in the first...
The ROSAT Brightest Cluster Sample (BCS) - IV. The extended sample (2000)
Ebeling, H., Edge, A. C., Allen, S. W., Crawford, C. S., Fabian, A. C., Huchra, J. P.
We present a low-flux extension of the X-ray selected ROSAT Brightest Cluster Sample (BCS) published in Paper I of this series. Like the original BCS and employing an identical selection procedure,...
M31 Globular Clusters: Colors and Metallicities (1999)
Barmby, P., Huchra, J. P., Brodie, J. P., Forbes, D. A., Schroder, L. L., Grillmair, C. J.
We present a new catalog of photometric and spectroscopic data on M31 globular clusters. The catalog includes new optical and near-infrared photometry for a substantial fraction of the 435 clusters...
Macri, L. M., Huchra, J. P., Stetson, P. B., Silbermann, N. A., Freedman, W. L., Kennicutt, R. C., ...
We report on the discovery of Cepheids in the Virgo spiral galaxy NGC 4535, based on observations made with the Wide Field and Planetary Camera 2 on board the Hubble Space Telescope. NGC 4535 is one...
Ebeling, H., Edge, A. C., Böhringer, H., Allen, S. W., Crawford, C. S., Fabian, A. C., ...
We present a 90 per cent flux-complete sample of the 201 X-ray brightest clusters of galaxies in the northern hemisphere (dec > 0 deg), at high Galactic latitudes (|b| > 20 deg), with measured...
Group Identification in N-Body Simulations: SKID and DENMAX Versus Friends-of-Friends (1998)
Goetz, M., Huchra, J. P., Brandenberger, R. H.
Three popular algorithms (FOF, DENMAX, and SKID) to identify halos in cosmological N-body simulations are compared with each other and with the predicted mass function from Press-Schechter theory. It...
The Supergalactic Plane revisited with the Optical Redshift Survey (1998)
Lahav, O., Santiago, B. X., Webster, A. M., Strauss, M. A., Davis, M., Dressler, A., ...
We re-examine the existence and extent of the planar structure in the local galaxy density field, the so-called Supergalactic Plane (SGP). This structure is studied here in three dimensions using...
Peterson, B. M., Barth, A. J., Berlind, P., Bertram, R., Bischoff, K., Bochkarev, N. G., ...
We present the results of three years of ground-based observations of the Seyfert 1 galaxy NGC 5548, which combined with previously reported data, yield optical continuum and broad-line H-beta light...
The Southern Sky Redshift Survey (1998)
Da Costa, L. Nicolaci, Willmer, C. N. A., Pellegrini, P. S., Chaves, O. L., Rite, C., Maia, M. A. G., ...
We report redshifts, magnitudes and morphological classifications for 5369 galaxies with $m_B \leq 15.5$ and 57 galaxies fainter than this limit, in two regions covering a total of 1.70 steradians in...
Dietrich, M., Peterson, B.M., Albrecht, P., Altmann, M., Barth, A.J., Bennie, P.J., ...
Results of a ground-based optical monitoring campaign on 3C 390.3 in 1994-1995 are presented. The broadband fluxes (B, V , R, and I), the spectrophotometric optical continuum flux Fλ(5177 Ã ),...
Dietrich, M, Peterson, B. M, Albrecht, P, Altmann, M, Barth, A. J, Bennie, P. J, ...
Results of a ground-based optical monitoring campaign on 3C 390.3 in 1994-1995 are presented. The broadband fluxes (B, V, R, and I), the spectrophotometric optical continuum flux F lambda (5177 A),...
Ebeling, H., Voges, W., Boehringer, H., Edge, A. C., Huchra, J. P., Briel, U. G.
We present an essentially complete, all-sky, X-ray flux limited sample of 242 Abell clusters of galaxies (six of which are double) compiled from ROSAT All-Sky Survey data. Our sample is...
The HST Medium Deep Survey: galaxy morphology at high redshift (1996)
Griffiths, R., Ratnatunga, K. U., Casertano, S., Im, M., Neuschaefer, L. W., Ellis, R., ...
With HST and WFPC2, galaxies in the Medium Deep Survey can be reliably classified to magnitudes I-814 less than or similar to 22.0 in the F814W band, at a mean redshift (z) over bar similar to 0.5....
The HST Medium Deep Survey: galaxy morphology at high redshift (1996)
Griffiths, R., Ratnatunga, K. U., Casertano, S., Im, M., Neuschaefer, L. W., Ellis, R., ...
With HST and WFPC2, galaxies in the Medium Deep Survey can be reliably classified to magnitudes I-814 less than or similar to 22.0 in the F814W band, at a mean redshift (z) over bar similar to 0.5....
X-ray evolution in the ROSAT Brightest Cluster Sample (1995)
Ebeling, H., Allen, S. W., Crawford, C. S., Edge, A. C., Fabian, A. C., Böhringer, H., ...
We present the X-ray luminosity function (XLF) of the ROSAT Brightest Cluster Sample (BCS), an X-ray selected, flux limited sample of 172 clusters of galaxies at $z\leq 0.3$ compiled from ROSAT...
Discovery of a Large Gravitational Arc in the X-ray Cluster A2280 (1995)
Gioia, I. M., Henry, J. P., Luppino, G. A., Clowe, D. I., Boehringer, H., Briel, U. G., ...
This Letter presents the serendipitous discovery of a large arc in an X-ray selected cluster detected in the Rosat North Ecliptic Pole (NEP) survey. The cluster, associated with Abell 2280, is...
PAIRWISE VELOCITIES OF GALAXIES IN THE CFA AND SSRS2 REDSHIFT SURVEYS (1995)
Marzke, R. O., Geller, M. J., Da Costa, L. N., Huchra, J. P.
(compressed version) We combine the CfA Redshift Survey (CfA2) and the Southern Sky Redshift Survey (SSRS2) to estimate the pairwise velocity dispersion of galaxies $\sig12$ on a scale of $\sim 1...
A COMPARATIVE STUDY OF MORPHOLOGICAL CLASSIFICATIONS OF APM GALAXIES (1995)
Naim, A., Lahav, O., Buta, R. J., Corwin Jr., H. G., De Vaucouleurs, G., Dressler, A., ...
We investigate the consistency of visual morphological classifications of galaxies by comparing classifications for 831 galaxies from six independent observers. The galaxies were classified on laser...
Galaxies, Human Eyes and Artificial Neural Networks (1994)
Lahav, O., Naim, A., Buta, R. J., Corwin, H. G., De Vaucouleurs, G., Dressler, A., ...
Quantitative morphological classification of galaxies is important for understanding the origin of type frequency and correlations with environment. But galaxy morphological classification is still...
The Power Spectrum of Galaxies in the Nearby Universe (1994)
Da Costa, L. N., Vogeley, M. S., Geller, M. J., Huchra, J. P., Park, C.
We compute the power spectrum of galaxy density fluctuations in a recently completed redshift survey of optically-selected galaxies in the southern hemisphere (SSRS2). The amplitude and shape of the...
The Two Micron All Sky Survey (1994)
Kleinmann, S. G., Lysaght, M. G., Pughe, W. L., Schneider, S. E., Skrutskie, M. F., Weinberg, M. D., ...
Peer Reviewed
The two micron all sky survey (1994)
Kleinmann, S. G., Lysaght, M. G., Pughe, W. L., Schneider, S. E., Skrutskie, M. F., Weinberg, M. D., ...
This paper describes the design, expectations, and prototyping of a new allsky survey, called 2MASS (Two Micron All Sky Survey) to be carried out with the new generation of infrared array detectors.
RX J1759.4+6638: an x-ray selected quasar at a redshift of 4.320 (1994)
Henry, J. P., Gioia, I. M., Böhringer, H., Bower, R. G., Briel, U. G., Hasinger, G. H., ...
RX J1759.4+6638: an x-ray selected quasar at a redshift of 4.320 (1994)
Henry, J. P., Gioia, I. M., Böhringer, H., Bower, R. G., Briel, U. G., Hasinger, G. H., ...
The K-Band Galaxy Luminosity Function
C. S. Kochanek, M. A. Pahre, E. E. Falco, J. P. Huchra, J. Mader, T. H Jarrett, ...
We measured the K-band luminosity function using a complete sample of 4192 morphologically-typed 2MASS galaxies with Ks = 20 mag/arcsec 2 isophotal magnitudes 7! K 20! 11:25 mag spread over 2:12 str....