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Gas and Stars in an H I-Selected Galaxy Sample
We present the results of a J-band study of the H I-selected AreciboDual-Beam Survey and Arecibo Slice Survey galaxy samples using TwoMicron All Sky Survey data. We find that these galaxies span a widerange of stellar and gas properties. However, despite the diversitywithin the samples, we find a very tight correlation between luminosityand size in the J band, similar to that found in a previous paper byRosenberg & Schneider between the H I mass and size. We also findthat the correlation between the baryonic mass and the J-band diameteris even tighter than that between the baryonic mass and the rotationalvelocity.
| The Arizona-New Mexico Spectroscopic Survey of Galaxies. III. On Galaxy Populations
We examine the population statistics for two samples of galaxies in thedirection of the Perseus supercluster. One sample, with N=258 galaxieshaving MB<=-19.52+5log(h) and vh<=8000 kms-1, is complete for those galaxies within the boundaries ofour survey region that have apparent magnitudes mp<=15.0in the Zwicky catalog. A more restrictive sample with N=177 galaxieshaving MB<=-20.00+5log(h) (with the same redshift range)is complete in both luminosity and volume. We derive the statistics forthe relative incidence of galaxies in the following spectroscopicclasses: (1) absorption line only, (2) collisionally-excited emissionlines only, (3) nuclear H II region, (4) starburst, (5) LINER, and (6)Seyfert 1.8-2.
| The Arizona-New Mexico Spectroscopic Survey of Galaxies. I. Data for the Western End of the Perseus Supercluster
We present new optical spectroscopic data for 347 galaxies in the regionof the Perseus supercluster. The new data were obtained using theSteward Observatory 2.3 m telescope and cover the whole optical window.Included are redshifts (for 345 objects), absorption-line equivalentwidths, a continuum index measuring the 4000 Å break, andemission-line flux ratios. After 11 objects are rejected for being toofaint and redshifts for 26 objects are added from the literature, wearrive at a complete sample of 361 galaxies. The distribution ofredshifts for the whole sample is examined, and we show the relationshipof the continuum index to morphology.
| Arcsecond Positions of UGC Galaxies
We present accurate B1950 and J2000 positions for all confirmed galaxiesin the Uppsala General Catalog (UGC). The positions were measuredvisually from Digitized Sky Survey images with rms uncertaintiesσ<=[(1.2")2+(θ/100)2]1/2,where θ is the major-axis diameter. We compared each galaxymeasured with the original UGC description to ensure high reliability.The full position list is available in the electronic version only.
| Near-infrared observations of galaxies in Pisces-Perseus. I. vec H-band surface photometry of 174 spiral
We present near-infrared, H-band (1.65 $() μm), surface photometry of174 spiral galaxies in the area of the Pisces-Perseus supercluster. Theimages, acquired with the ARNICA camera mounted on various telescopes,are used to derive radial profiles of surface brightness, ellipticities,and position angles, together with global parameters such as H-bandmagnitudes and diameters Radial profiles in tabular form and images FITSfiles are also available upon request from gmorio@arcetri.astro.it.}.The mean relation between H-band isophotal diameter D_{21.5} and theB-band D25 implies a B-H color of the outer disk bluer than3.5; moreover, D_{21.5}/D25 depends on (global) color andabsolute luminosity. The correlations among the various photometricparameters suggest a ratio between isophotal radius D_{21.5}/2 and diskscale length of ~ m3.5 and a mean disk central brightness ~ meq 17.5H-mag arcsec^{-2}. We confirm the trend of the concentration indexC31$ with absolute luminosity and, to a lesser degree, withmorphological type. We also assess the influence of non-axisymmetricstructures on the radial profiles and on the derived parameters. Basedon observations at the TIRGO, NOT, and VATT telescopes. TIRGO(Gornergrat, CH) is operated by CAISMI-CNR, Arcetri, Firenze. NOT (LaPalma, Canary Islands) is operated by NOTSA, the Nordic ObservatoryScientific Association. VATT (Mt. Graham, Az) is operated by VORG, theVatican Observatory Research Group Table 3 and Fig. 4 are only availablein electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr(130.79.128.5) or via http://cdsweb.u-strasbg.fr/Abstract.html.
| A Deep Survey of H I-selected Galaxies: The Sample and the Data
In a 21 cm neutral hydrogen survey of approximately 55 deg^2 out to aredshift of cz = 8340 km s^-1, we have identified 75 extragalactic H Isources. These objects comprise a well-defined sample of extragalacticsources chosen by means that are independent of optical surfacebrightness selection effects. In this paper we describe the Arecibosurvey procedures and H I data, follow-up VLA H I observations made ofseveral unusual sources, and Kitt Peak B-, R-, and I-band photometry fornearly all of the galaxies. We have also gathered information for someof the optically detected galaxies within the same search volume. Weexamine how samples generated by different types of search techniquesoverlap with selection by H I flux. Only the least massive H I object,which is among the lowest mass H I sources previously found, does nothave a clear optical counterpart, but a nearby bright star may hide lowsurface brightness emission. However, the newly detected systems do haveunusual optical properties. Most of the 40 galaxies that were notpreviously identified in magnitude-limited catalogs appear to begas-dominated systems, and several of these systems have H Imass-to-light ratios among the largest values ever previously found.These gas-dominated objects also tend to have very blue colors, lowsurface brightnesses, and no central bulges, which correlate stronglywith their relative star-to-gas content.
| Total magnitude, radius, colour indices, colour gradients and photometric type of galaxies
We present a catalogue of aperture photometry of galaxies, in UBVRI,assembled from three different origins: (i) an update of the catalogueof Buta et al. (1995) (ii) published photometric profiles and (iii)aperture photometry performed on CCD images. We explored different setsof growth curves to fit these data: (i) The Sersic law, (ii) The net ofgrowth curves used for the preparation of the RC3 and (iii) A linearinterpolation between the de Vaucouleurs (r(1/4) ) and exponential laws.Finally we adopted the latter solution. Fitting these growth curves, wederive (1) the total magnitude, (2) the effective radius, (3) the colourindices and (4) gradients and (5) the photometric type of 5169 galaxies.The photometric type is defined to statistically match the revisedmorphologic type and parametrizes the shape of the growth curve. It iscoded from -9, for very concentrated galaxies, to +10, for diffusegalaxies. Based in part on observations collected at the Haute-ProvenceObservatory.
| An image database. II. Catalogue between δ=-30deg and δ=70deg.
A preliminary list of 68.040 galaxies was built from extraction of35.841 digitized images of the Palomar Sky Survey (Paper I). For eachgalaxy, the basic parameters are obtained: coordinates, diameter, axisratio, total magnitude, position angle. On this preliminary list, weapply severe selection rules to get a catalog of 28.000 galaxies, wellidentified and well documented. For each parameter, a comparison is madewith standard measurements. The accuracy of the raw photometricparameters is quite good despite of the simplicity of the method.Without any local correction, the standard error on the total magnitudeis about 0.5 magnitude up to a total magnitude of B_T_=17. Significantsecondary effects are detected concerning the magnitudes: distance toplate center effect and air-mass effect.
| The far-infrared properties of the CfA galaxy sample. I - The catalog
IRAS flux densities are presented for all galaxies in the Center forAstrophysics magnitude-limited sample (mB not greater than 14.5)detected in the IRAS Faint Source Survey (FSS), a total of 1544galaxies. The detection rate in the FSS is slightly larger than in thePSC for the long-wavelength 60- and 100-micron bands, but improves by afactor of about 3 or more for the short wavelength 12- and 25-micronbands. This optically selected sample consists of galaxies which are, onaverage, much less IR-active than galaxies in IR-selected samples. Itpossesses accurate and complete redshift, morphological, and magnitudeinformation, along with observations at other wavelengths.
| KISO survey for ultraviolet-excess galaxies. X.
Presented here are the tenth list and identification charts of theultraviolet-excess galaxies which have been detected on the multi-colorplates taken with the Kiso Schmidt telescope for 10 survey fields. Inthe sky area of some 300 square degrees 490 objects are catalogued downto the photographic magnitude of about 18.
| IRAS observations of a large sample of normal irregular galaxies
IRAS 12, 25, 60, and 100 micron data are presented for a sample of Irrgalaxies which span a large range in star-formation activity. It isfound that the dwarf, giant, and amorphous Irr's generally have similarIR properties. The typical L(IR)/L(H-alpha) ratios of most classes ofIrr's, except for many of the luminous blue galaxies, are low comparedwith those of spiral galaxies and are consistent with the Irr's beingrelatively transparent systems without large amounts of optically hiddenstar formation. Compared with spiral galaxies, the Irr's have similarL(IR)/L(B) ratios, warmer S(100)/S(60) ratios, cooler S(25)/S(12)ratios, and lower dust-to-H I gas mass ratios. The temperature,dust-to-H I gas mass ratios, and L(IR)/L(B) ratios do not correlate withthe metallicity of the ionized gas of the Irr's. A correlation betweenthe IR fluxes and both the H-alpha and the blue stellar fluxes is foundfor the Irr's.
| Photometry of Zwicky compact galaxies
The class of Zwicky compact galaxies (ZCGs) with sharp emission lines isshown by the present aperture UBVRI photometry for 80 ZCGs to have thesame color indices as the Markarian galaxies, as well as the bluecompact dwarf and irregular galaxies in the Virgo cluster; it isaccordingly suggested that they define a family, with differences amongindividuals being primarily due to their different star formationactivity status. The ZCGs without emission lines and with U-V greaterthan 0.4 have color indices similar to those of normal ellipticalgalaxies and, consequently, similar stellar contents.
| Stellar populations and star formation in irregular galaxies
A review and intercomparison is conducted of data on variousmorphologically-chosen groups of irregular galaxies in order tounderstand the underlying physical mechanisms that differentiate thesesystems. Particular attention is given to the observational clues to thestellar content, star-formation processes, and star-formation historiesof these galaxies, with an emphasis on the uncertainties and the manyunanswered questions.
| On the origin of some QSO absorption lines
Some QSO absorption-line systems (QSOALSs) may arise when a QSO sightline intersects a Magellanic-type irregular galaxy (i.e., a gas-richdwarf). Much of the complexity in the line profiles of metals can benaturally explained in this manner. The frequency of occurrence ofQSOALSs then requires that much of the mass of modern galaxies onceresided in a halo of gas-rich dwarfs (at the epoch of QSOALS formation).
| A 21 CM survey of the Pisces-Perseus supercluster. II - The declination zone +21.5 to +27.5 degrees
Neutral-hydrogen 21-cm line spectra and derived parameters are presentedfor a sample of spiral galaxies in the region bounded by an R.A. greaterthan 22 h and less then 0.04 h, and a declination greater than +21 deg30 min and less than +27 deg 30 min, covering the Zwicky fields 470 to488, as the second installment of a survey of the region of thePisces-Perseus supercluster. New H I line observations made with theArecibo 305 m telescope detected 275 galaxies of 318 studied. Atabulation of derived galaxian properties is given. The redshiftdistribution shows gross departures from that expected for a sample withsimilar magnitude characteristics but homogeneously located in space.These new data will be incorporated into the overall survey of thethree-dimensional structure in the Pisces-Perseus region.
| U, B, V, R photometry of 37 galaxies
U, B, V, R photometry is reported for 37 objects selected fromArakelyan's catalog of high surface-brightness galaxies and several ofMarkaryan's lists. The distribution of the program galaxies in thetwo-color diagram suggests they are of diversified morphological type.Some occupy the Seyfert-galaxy region.
| A survey of galaxy redshifts. IV - The data
The complete list of the best available radial velocities for the 2401galaxies in the merged Zwicky-Nilson catalog brighter than 14.5mz and with b (II) above +40 deg or below -30 deg ispresented. Almost 60 percent of the redshifts are from the CfA surveyand are accurate to typically 35 km/s.
| Accurate Optical Positions of Arakelian Galaxies
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1981AJ.....86..820K&db_key=AST
| H I observations of blue compact galaxies
Neutral hydrogen observations, in the 21-cm line, of 99 compact galaxiesfrom the lists of Zwicky, Haro, and Markarian were made using the 91-and 305-m telescopes. Most were blue or very blue systems, and 72 weredetected. The overall global properties of these systems are found to bein approximately the same range as normal late-type galaxies. At oneextreme, however, they may extend to types later than Ir I systems.These systems are typically rich in H I gas, and there are indicationsthat they have large H I halos. It is suggested that H I gas infallingfrom such halos may provide the fuel for intermittent bursts of rapidstar formation and may explain the low metallicity found in some bluecompacts.
| Galaxies of high surface brightness
Two lists are presented which contain 621 galaxies whose surfacebrightness, as derived from their apparent magnitudes, is at least 22.0magnitudes from an area of 1 sq arcsec. The lists were compiled in anattempt to verify observationally a possible correlation between surfacebrightness and nuclear activity. Four percent of all the galaxies in anarea of 4.5 sr at declinations higher than -3 deg and galactic latitudesgreater than 20 deg are listed, including 30 Markarian, 29 Zwicky, and 7blue Haro galaxies. A morphological study of 130 of the galaxiesindicates that about half are elliptical or lenticular, 50 are compactor peculiar, and that there is an excess of elliptical and lenticularobjects in comparison with a random sample. Notes on the morphologicaltypes and colors of the galaxies are provided along with identificationcharts.
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