output
19932026
most citedThe Seventh Data Release of the Sloan Digital Sky Survey

5.4k citations

Showing 2017 · astro-ph.GAShow all

36 papers · 2 filters

astro-ph.GA2017★ 85 cited

CHANG-ES IX: Radio scale heights and scale lengths of a consistent sample of 13 spiral galaxies seen edge-on and their correlations

Marita Krause, Judith Irwin, Theresa Wiegert +14

The vertical halo scale height is a crucial parameter to understand the transport of cosmic-ray electrons (CRE) and their energy loss mechanisms in spiral galaxies. Until now, the…

astro-ph.GA2017★ 16 cited

The Sloan Digital Sky Survey Reverberation Mapping Project: Composite Lags at

Jennifer I-Hsiu Li, Yue Shen, Keith Horne +13

We present composite broad-line region (BLR) reverberation-mapping lag measurements for \halpha, \hbeta, \HeII\, and \MgII\ for a sample of 144, quasars…

astro-ph.GA2017★ 97 cited

SDSS-IV MANGA: Spatially Resolved Star Formation Main Sequence and LI(N)ER Sequence

B. C. Hsieh, Lihwai Lin, J. H. Lin +17

We present our study on the spatially resolved H_alpha and M_star relation for 536 star-forming and 424 quiescent galaxies taken from the MaNGA survey. We show that the star format…

astro-ph.GA2017★ 8 cited

SDSS-IV MaNGA: Constraints on the Conditions for Star Formation in Galaxy Discs

David V. Stark, Kevin A. Bundy, Matthew E. Orr +12

Regions of disc galaxies with widespread star formation tend to be both gravitationally unstable and self-shielded against ionizing radiation, whereas extended outer discs with lit…

astro-ph.GA2017★ 15 cited

AGN photoionization of gas in companion galaxies as a probe of AGN radiation in time and direction

William C. Keel, Vardha N. Bennert, Anna Pancoast +9

We consider AGN photoionization of gas in companion galaxies (cross-ionization) as a way to sample the intensity of AGN radiation in both direction and time, independent of the gas…

astro-ph.GA2017★ 225 cited

The Sloan Digital Sky Survey Reverberation Mapping Project: H and H Reverberation Measurements From First-year Spectroscopy and Photometry

C. J. Grier, J. R. Trump, Yue Shen +39

We present reverberation mapping results from the first year of combined spectroscopic and photometric observations of the Sloan Digital Sky Survey Reverberation Mapping Project. W…

astro-ph.GA2017★ 37 cited

The Hercules stream as seen by APOGEE-2 South

Jason A. S. Hunt, Jo Bovy, Angeles Pérez-Villegas +15

The Hercules stream is a group of co-moving stars in the Solar neighbourhood, which can potentially be explained as a signature of either the outer Lindblad resonance (OLR) of a fa…

astro-ph.GA2017★ 57 cited

Resolved star formation and molecular gas properties of green valley galaxies: a first look with ALMA and MaNGA

Lihwai Lin, Francesco Belfiore, Hsi-An Pan +21

We study the role of cold gas in quenching star formation in the green valley by analysing ALMA CO (1-0) observations of three galaxies with resolved optical spectroscopy fr…

astro-ph.GA2017★ 78 cited

MultiDark-Galaxies: data release and first results

Alexander Knebe, Doris Stoppacher, Francisco Prada +18

We present the public release of the MultiDark-Galaxies: three distinct galaxy catalogues derived from one of the Planck cosmology MultiDark simulations (i.e. MDPL2, with a volume…

astro-ph.GA2017★ 121 cited

SDSS-IV MaNGA: Evidence of the importance of AGN feedback in low-mass galaxies

Samantha J. Penny, Karen L. Masters, Rebecca Smethurst +15

We present new evidence for AGN feedback in a subset of 69 quenched low-mass galaxies ( M, ) selected from the first t…

astro-ph.GA2017★ 102 cited

Demographics of Star-forming Galaxies since . I. The Diagram in CANDELS

Jerome J. Fang, S. M. Faber, David C. Koo +41

This is the first in a series of papers examining the demographics of star-forming galaxies at in CANDELS. We study 9,100 galaxies from GOODS-S and UDS having published…

astro-ph.GA2017★ 9 cited

Chemical abundances and ages of the bulge stars in APOGEE high-velocity peaks

Yingying Zhou, Juntai Shen, Chao Liu +17

A cold high-velocity (HV, 200 km/s) peak was first reported in several Galactic bulge fields based on the APOGEE commissioning observations. Both the existence and the natur…

astro-ph.GA2017★ 14 cited

Probing the Metal Enrichment of the Intergalactic Medium at Using the Hubble Space Telescope

Zheng Cai, Xiaohui Fan, Romeel Dave +2

We test the galactic outflow model by probing associated galaxies of four strong intergalactic CIV absorbers at --6 using the Hubble Space Telescope (HST) ACS ramp narrowband…

astro-ph.GA2017★ 68 cited

The Young Star Cluster population of M51 with LEGUS: I. A comprehensive study of cluster formation and evolution

M. Messa, A. Adamo, G. Östlin +34

Recently acquired WFC3 UV (F275W and F336W) imaging mosaics under the Legacy Extragalactic UV Survey (LEGUS) combined with archival ACS data of M51 are used to study the young star…

astro-ph.GA2017★ 293 cited

Target Selection for the SDSS-IV APOGEE-2 Survey

G. Zasowski, R. E. Cohen, S. D. Chojnowski +34

APOGEE-2 is a high-resolution, near-infrared spectroscopic survey observing roughly 300,000 stars across the entire sky. It is the successor to APOGEE and is part of the Sloan Digi…

astro-ph.GA2017★ 37 cited

COS-Weak: Probing the CGM using analogs of weak Mg II absorbers at z < 0.3

Sowgat Muzahid, Gloria Fonseca, Amber Roberts +5

We present a sample of 34 weak metal line absorbers at complied via the simultaneous detections () of the SiII and CII absorption lines, with…

astro-ph.GA2017★ 33 cited

SDSS-IV MaNGA: Uncovering the Angular Momentum Content of Central and Satellite Early-type Galaxies

Jenny E. Greene, Alexie Leauthaud, Eric Emsellem +18

We study 379 central and 159 satellite early-type galaxies with two-dimensional kinematics from the integral-field survey Mapping Nearby Galaxies at APO (MaNGA) to determine how th…

astro-ph.GA2017★ 20 cited

Measuring the X-shaped structures in edge-on galaxies

S. S. Savchenko, N. Ya. Sotnikova, A. V. Mosenkov +2

We present a detailed photometric study of a sample of 22 edge-on galaxies with clearly visible X-shaped structures. We propose a novel method to derive geometrical parameters of t…

astro-ph.GA2017★ 92 cited

APOGEE Chemical Abundances of the Sagittarius Dwarf Galaxy

Sten Hasselquist, Matthew Shetrone, Verne Smith +23

The Apache Point Observatory Galactic Evolution Experiment (APOGEE) provides the opportunity to measure elemental abundances for C, N, O, Na, Mg, Al, Si, P, K, Ca, V, Cr, Mn, Fe, C…

astro-ph.GA2017★ 84 cited

Atypical Mg-poor Milky Way field stars with globular cluster second-generation like chemical patterns

J. G. Fernández-Trincado, O. Zamora, D. A. Garcia-Hernandez +48

We report the peculiar chemical abundance patterns of eleven atypical Milky Way (MW) field red giant stars observed by the Apache Point Observatory Galactic Evolution Experiment (A…

astro-ph.GA2017★ 681 cited

The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the extended Baryon Oscillation Spectroscopic Survey and from the second phase of the Apache Point Observatory Galactic Evolution Experiment

Bela Abolfathi, D. S. Aguado, Gabriela Aguilar +344

The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) has been in operation since July 2014. This paper describes the second data release from this phase, and the fourtee…

astro-ph.GA2017★ 120 cited

A massive, dead disk galaxy in the early Universe

Sune Toft, Johannes Zabl, Johan Richard +10

At redshift z = 2, when the Universe was just three billion years old, half of the most massive galaxies were extremely compact and had already exhausted their fuel for star format…

astro-ph.GA2017★ 36 cited

The Impact of the Group Environment on the OVI Circumgalactic Medium

Stephanie K. Pointon, Nikole M. Nielsen, Glenn G. Kacprzak +3

We present a study comparing OVI 1031, 1037 doublet absorption found towards group galaxy environments with that of isolated galaxies. The OVI absorption in the circumgalactic…

astro-ph.GA2017★ 191 cited

The age-metallicity structure of the Milky Way disk

J. Ted Mackereth, Jo Bovy, Ricardo P. Schiavon +11

The measurement of the structure of stellar populations in the Milky Way disk places fundamental constraints on models of galaxy formation and evolution. Previously, the disk's str…