output
20002026
most citedSeven temperate terrestrial planets around the nearby ultracool dwarf star TRAPPIST-1

1.6k citations

Showing 2016 · astro-ph.GAShow all

22 papers · 2 filters

astro-ph.GA2016★ 15 cited

A systematic observational study of radio properties of H2O megamaser Seyfert-2 galaxies

Z. W. Liu, J. S. Zhang, C. Henkel +5

A systematic study is performed on radio properties of HO megamaser host Seyfert 2 galaxies, through multi-band radio continuum observations (at 11cm, 6.0 cm, 3.6 cm, 2.0 cm…

astro-ph.GA2016★ 20 cited

Mass-Metallicity Relation for Local Analogs of High-Redshift galaxies: Implications for the Evolution of the Mass-Metallicity Relations

Fuyan Bian, Lisa Kewley, Michael Dopita +1

We revisit the evolution of the mass-metallicity relation of low- and high-redshift galaxies by using a sample of local analogs of high-redshift galaxies. These analogs share the s…

astro-ph.GA2016★ 52 cited

Searching for metal-deficient emission-line galaxy candidates: the final sample of the SDSS DR12 galaxies

N. G. Guseva, Y. I. Izotov, K. J. Fricke +1

We present a spectroscopic study of metal-deficient dwarf galaxy candidates, selected from the SDSS DR12. The oxygen abundances were derived using the direct method in galaxies wit…

astro-ph.GA2016★ 64 cited

The Megamaser Cosmology Project.IX. Black hole masses for three maser galaxies

F. Gao, J. A. Braatz, M. J. Reid +9

As part of the Megamaser Cosmology Project (MCP), we present VLBI maps of nuclear water masers toward five galaxies. The masers originate in sub-parsec circumnuclear disks. For thr…

astro-ph.GA2016★ 39 cited

Kinetic temperature of massive star forming molecular clumps measured with formaldehyde

X. D. Tang, C. Henkel, K. M. Menten +8

For a general understanding of the physics involved in the star formation process, measurements of physical parameters such as temperature and density are indispensable. The chemic…

astro-ph.GA2016★ 26 cited

The molecular gas mass of M33

P. Gratier, J. Braine, K. Schuster +15

[Abridged] Do some environments favor efficient conversion of molecular gas into stars? To answer this, we need to be able to estimate the H2 mass. Traditionally, this is done usin…

astro-ph.GA2016★ 39 cited

OH+ and H2O+ absorption toward PKS1830-211

S. Muller, H. S. P. M"uller, J. H. Black +13

We report the detection of OH+ and H2O+ in the z=0.89 absorber toward the lensed quasar PKS1830-211. The abundance ratio of OH+ and H2O+ is used to quantify the molecular hydrogen…

astro-ph.GA2016★ 19 cited

Ammonia and CO Outflow around 6.7 GHz Methanol Masers

F. C. Li, Y. Xu, Y. W. Wu +4

Single point observations are presented in NH3 (1,1) and (2,2) inversion transitions using the Effelsberg 100 m telescope for a sample of 100 6.7 GHz methanol masers and mapping ob…

astro-ph.GA2016★ 48 cited

The bursting nature of star formation in compact star-forming galaxies from the Sloan Digital Sky Survey

Y. I. Izotov, N. G. Guseva, K. J. Fricke +1

We study integrated characteristics of ~14000 low-redshift (0<z<1) compact star-forming galaxies (SFGs) selected from the Data Release 12 of the Sloan Digital Sky Survey. It is fou…

astro-ph.GA2016★ 41 cited

Free-free and H42alpha emission from the dusty starburst within NGC 4945 as observed by ALMA

G. J. Bendo, C. Henkel, M. J. D'Cruze +3

We present observations of the 85.69 GHz continuum emission and H42alpha line emission from the central 30 arcsec within NGC 4945. Both sources of emission originate from nearly id…

astro-ph.GA2016★ 105 cited

Megamaser Disks Reveal a Broad Distribution of Black Hole Mass in Spiral Galaxies

Jenny E. Greene, Anil C. Seth, Minjin Kim +8

We use new precision measurements of black hole masses from water megamaser disks to investigate scaling relations between macroscopic galaxy properties and supermassive black hole…

astro-ph.GA2016★ 59 cited

Shapley Supercluster Survey: Ram-Pressure Stripping vs. Tidal Interactions in the Shapley Supercluster

P. Merluzzi, G. Busarello, M. A. Dopita +4

We present two new examples of galaxies undergoing transformation in the Shapley supercluster core. These low-mass (stellar mass from 0.4E10 to 1E10 Msun) galaxies are members of t…

astro-ph.GA2016★ 36 cited

Forbidden Iron Lines and Dust Destruction in Supernova Remnant Shocks: The Case of N49 in the Large Magellanic Cloud

Michael A. Dopita, Ivo R. Seitenzahl, Ralph S. Sutherland +3

We present results of a complete integral field survey of the bright SNR N49 in the LMC, obtained with the WiFeS instrument mounted on the ANU 2.3m telescope at Siding Spring Obser…

astro-ph.GA2016★ 209 cited

ALMA resolves the torus of NGC 1068: continuum and molecular line emission

S. Garcia-Burillo, F. Combes, C. Ramos Almeida +18

We have used the Atacama Large Millimeter Array (ALMA) to map the emission of the CO(6-5) molecular line and the 432 μm continuum emission from the 300 pc-sized circumnuclear disk…

astro-ph.GA2016★ 27 cited

The Role of Radiation Pressure in the Narrow Line Regions of Seyfert Host Galaxies

Rebecca L. Davies, Michael A. Dopita, Lisa J. Kewley +13

We investigate the relative significance of radiation pressure and gas pressure in the extended narrow line regions (ENLRs) of four Seyfert galaxies from the integral field Siding…

astro-ph.GA2016★ 54 cited

Local Analogs for High-redshift Galaxies: Resembling the Physical Conditions of the Interstellar Medium in High-redshift Galaxies

Fuyan Bian, Lisa Kewley, Michael Dopita +1

We present a sample of local analogs for high-redshift galaxies selected in the Sloan Digital Sky Survey (SDSS). The physical conditions of the interstellar medium (ISM) in these l…

astro-ph.GA2016★ 58 cited

The unbearable opaqueness of Arp 220

S. Martín, S. Aalto, K. Sakamoto +12

We explore the potential of imaging vibrationally excited molecular emission at high angular resolution to better understand the morphology and physical structure of the dense gas…

astro-ph.GA2016★ 64 cited

The Black Hole - Bulge Mass Relation in Megamaser Host Galaxies

Ronald Läsker, Jenny E. Greene, Anil Seth +4

We present HST images for nine megamaser disk galaxies with the primary goal of studying photometric BH-galaxy scaling relations. The megamaser disks provide the highest-precision…

astro-ph.GA2016★ 86 cited

The SAMI Galaxy Survey: extraplanar gas, galactic winds, and their association with star formation history

I-Ting Ho, Anne M. Medling, Joss Bland-Hawthorn +23

We investigate a sample of 40 local, main-sequence, edge-on disc galaxies using integral field spectroscopy with the Sydney-AAO Multi-object Integral field spectrograph (SAMI) Gala…

astro-ph.GA2016★ 12 cited

Dense circum-nuclear molecular gas in starburst galaxies

Claire-Elise Green, Maria R. Cunningham, James A. Green +7

We present results from a study of the dense circum-nuclear molecular gas of starburst galaxies. The study aims to investigate the interplay between starbursts, active galactic nuc…

astro-ph.GA2016★ 285 cited

Chemical abundances in high-redshift galaxies: A powerful new emission line diagnostic

Michael A. Dopita, Lisa J. Kewley, Ralph S. Sutherland +1

This Letter presents a new, remarkably simple diagnostic specifically designed to derive chemical abundances for high redshift galaxies. It uses only the H α, [N II] and [S II] emi…

astro-ph.GA2016★ 5 cited

A rotating helical filament in the L1251 dark cloud

S. A. Levshakov, D. Reimers, C. Henkel

(Abridged) Aims. We derive the physical properties of a filament discovered in the dark cometary-shaped cloud L1251. Methods. Mapping observations in the NH3(1,1) and (2,2) inversi…