Publications


The Fifteenth Data Release of the Sloan Digital Sky Surveys: First Release of MaNGA-derived Quantities, Data Visualization Tools, and Stellar Library

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 240 (2019) ARTN 23

DS Aguado, R Ahumada, A Almeida, SF Anderson, BH Andrews, B Anguiano, E Aquino Ortiz, A Aragon-Salamanca, M Argudo-Fernandez, M Aubert, V Avila-Reese, C Badenes, SB Rembold, K Barger, J Barrera-Ballesteros, D Bates, J Bautista, RL Beaton, TC Beers, F Belfiore, M Bernardi, M Bershady, F Beutler, J Bird, D Bizyaev, GA Blanc, MR Blanton, M Blomqvist, AS Bolton, M Boquien, J Borissova, J Bovy, WN Brandt, J Brinkmann, JR Brownstein, K Bundy, A Burgasser, N Byler, MC Diaz, M Cappellari, R Carrera, B Cervantes Sodi, Y Chen, B Cherinka, PD Choi, H Chung, D Coffey, JM Comerford, J Comparat, K Covey, GDS Ilha, L da Costa, YS Dai, G Damke, J Darling, R Davies, K Dawson, V de Sainte Agathe, AD Machado, A Del Moro, N De Lee, AM Diamond-Stanic, HD Sanchez, J Donor, N Drory, HDM des Bourboux, C Duckworth, T Dwelly, G Ebelke, E Emsellem, S Escoffier, JG Fernandez-Trincado, D Feuillet, J-L Fischer, SW Fleming, A Fraser-McKelvie, G Freischlad, PM Frinchaboy, H Fu, L Galbany, R Garcia-Dias, DA Garcia-Hernandez, LA Garma Oehmichen, MA Geimba Maia, H Gil-Marin, K Grabowski, M Gu, H Guo, J Ha, E Harrington, S Hasselquist, CR Hayes, F Hearty, H Hernandez Toledo, H Hicks, DW Hogg, K Holley-Bockelmann, JA Holtzman, B-C Hsieh, JAS Hunt, HS Hwang, HJ Ibarra-Medel, CE Jimenez Angel, J Johnson, A Jones, H Jonsson, K Kinemuchi, J Kollmeier, C Krawczyk, K Kreckel, S Kruk, I Lacerna, T-W Lan, RR Lane, DR Law, Y-B Lee, C Li, J Lian, L Lin, Y-T Lin, C Lintott, D Long, P Longa-Pena, JT Mackereth, A de la Macorra, SR Majewski, O Malanushenko, A Manchado, C Maraston, V Mariappan, M Marinelli, R Marques-Chaves, T Masseron, KL Masters, RM McDermid, N Medina Pena, S Meneses-Goytia, A Merloni, M Merrifield, S Meszaros, D Minniti, R Minsley, D Muna, AD Myers, P Nair, JC do Nascimento, JA Newman, C Nitschelm, MD Olmstead, A Oravetz, D Oravetz, RA Ortega Minakata, Z Pace, N Padilla, PA Palicio, K Pan, H-A Pan, T Parikh, PJ III, S Peirani, S Penny, WJ Percival, I Perez-Fournon, T Peterken, MH Pinsonneault, A Prakash, MJ Raddick, A Raichoor, RA Riffel, R Riffel, H-W Rix, AC Robin, A Roman-Lopes, B Rose, AJ Ross, G Rossi, K Rowlands, KHR Rubin, SF Sanchez, JR Sanchez-Gallego, C Sayres, A Schaefer, RP Schiavon, JS Schimoia, E Schlafly, D Schlegel, DP Schneider, M Schultheis, H-J Seo, SJ Shamsi, Z Shao, S Shen, S Shetty, G Simonian, RJ Smethurst, J Sobeck, BJ Souter, A Spindler, DV Stark, KG Stassun, M Steinmetz, T Storchi-Bergmann, GS Stringfellow, G Suarez, J Sun, M Taghizadeh-Popp, MS Talbot, J Tayar, AR Thakar, D Thomas, P Tissera, R Tojeiro, NW Troup, E Unda-Sanzana, O Valenzuela, M Vargas-Magana, J Antonio Vazquez-Mata, D Wake, BA Weaver, A-M Weijmans, KB Westfall, V Wild, J Wilson, E Woods, R Yan, M Yang, O Zamora, G Zasowski, K Zhang, Z Zheng, G Zhu, JC Zinn, H Zou


The Quick and the Dead: Finding the Surviving Binary Companions of Galactic Supernovae with Gaia

ASTROPHYSICAL JOURNAL 871 (2019) ARTN 92

M Fraser, D Boubert


A Magellanic origin for the Virgo sub-structure

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 482 (2019) 4562-4569

D Boubert, V Belokurov, D Erkal, G Iorio


A hypervelocity star with a Magellanic origin

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 483 (2019) 2007-2013

D Erkal, D Boubert, A Gualandris, NW Evans, F Antonini


MADE: a spectroscopic mass, age, and distance estimator for red giant stars with Bayesian machine learning

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 484 (2019) 294-304

P Das, JL Sanders


The AGN Fuelling/Feedback Cycle in Nearby Radio Galaxies - I. ALMA Observations and Early Results

Astronomy and Astrophysics EDP Sciences (2019)

M BUREAU


Orbit-superposition models of discrete, incomplete stellar kinematics: application to the Galactic centre

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) (2019)

J Magorrian

We present a method for fitting orbit-superposition models to the kinematics of discrete stellar systems when the available stellar sample has been filtered by a known selection function. The fitting method can be applied to any model in which the distribution function is represented as a linear superposition of basis elements with unknown weights. As an example, we apply it to Fritz et al.'s kinematics of the innermost regions of the Milky Way's nuclear stellar cluster. Assuming spherical symmetry, our models fit a black hole of mass $M_\bullet=(3.76\pm0.22)\times10^6\,M_\odot$, surrounded by an extended mass $M_\star=(6.57\pm0.54)\times10^6\,M_\odot$ within $4\,\pc$. Within $1\,\pc$ the best-fitting mass models have an approximate power-law density cusp $\rho\propto r^{-\gamma}$ with $\gamma=1.3\pm0.3$. We carry out an extensive investigation of how our modelling assumptions might bias these estimates: $M_\bullet$ is the most robust parameter and $\gamma$ the least. Internally the best-fitting models have broadly isotropic orbit distributions, apart from a bias towards circular orbits between 0.1 and 0.3 parsec.


Warp, waves, and wrinkles in the Milky Way

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 478 (2018) 3809-3824

R Schonrich, W Dehnen


Radial measurements of IMF-sensitive absorption features in two massive ETGs

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 475 (2018) 1073-1092

SP Vaughan, RL Davies, S Zieleniewski, RCW Houghton


The stellar population and initial mass function of NGC 1399 with MUSE

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 479 (2018) 2443-2456

SP Vaughan, RL Davies, S Zieleniewski, RCW Houghton


CO Tully-Fisher relation of star-forming galaxies at z = 0.05 – 0.3

Monthly Notices of the Royal Astronomical Society (2018)

S Topal, M Bureau, AL Tiley, TA Davis, K Torii


Confirming chemical clocks: asteroseismic age dissection of the Milky Way disc(s)

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 475 (2018) 5487-5500

VS Aguirre, M Bojsen-Hansen, D Slumstrup, L Casagrande, D Kawata, I Ciuca, R Handberg, MN Lund, JR Mosumgaard, D Huber, JA Johnson, MH Pinsonneault, AM Serenelli, D Stello, J Tayar, JC Bird, S Cassisi, M Hon, M Martig, PE Nissen, HW Rix, R Schonrich, C Sahlholdt, WH Trick, J Yu


Improved distances and ages for stars common to TGAS and RAVE

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 477 (2018) 5279-5300

PJ McMillan, G Kordopatis, A Kunder, J Binney, J Wojno, T Zwitter, M Steinmetz, J Bland-Hawthorn, BK Gibson, G Gilmore, EK Grebel, A Helmi, U Munari, JF Navarro, QA Parker, G Seabroke, F Watson, RFG Wyse


Correlations between age, kinematics, and chemistry as seen by the RAVE survey

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 477 (2018) 5612-5624

J Wojno, G Kordopatis, M Steinmetz, P McMillan, J Binney, B Famaey, G Monari, I Minchev, RFG Wyse, T Antoja, A Siebert, I Carrillo, J Bland-Hawthorn, EK Grebel, T Zwitter, O Bienayme, B Gibson, A Kunder, U Munari, J Navarro, Q Parker, W Reid, G Seabroke


Three Hypervelocity White Dwarfs in Gaia DR2: Evidence for Dynamically Driven Double-degenerate Double-detonation Type Ia Supernovae

ASTROPHYSICAL JOURNAL 865 (2018) ARTN 15

KJ Shen, D Boubert, BT Gansicke, SW Jha, JE Andrews, L Chomiuk, RJ Foley, M Fraser, M Gromadzki, J Guillochon, MM Kotze, K Maguire, MR Siebert, N Smith, J Strader, C Badenes, WE Kerzendorf, D Koester, M Kromer, B Miles, R Pakmor, J Schwab, O Toloza, S Toonen, DM Townsley, BJ Williams


A photometric analysis of Abell 1689: two-dimensional multistructure decomposition, morphological classification and the Fundamental Plane

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 474 (2018) 339-387

ED Bonta, RL Davies, RCW Houghton, F D'Eugenio, J Mendez-Abreu


Two chemically similar stellar overdensities on opposite sides of the plane of the Galactic disk.

Nature 555 (2018) 334-337

M Bergemann, B Sesar, JG Cohen, AM Serenelli, A Sheffield, TS Li, L Casagrande, KV Johnston, CFP Laporte, AM Price-Whelan, R Schönrich, A Gould

Our Galaxy is thought to have an active evolutionary history, dominated over the past ten billion years or so by star formation, the accretion of cold gas and, in particular, the merging of clumps of baryonic and dark matter. The stellar halo-the faint, roughly spherical component of the Galaxy-reveals rich 'fossil' evidence of these interactions, in the form of stellar streams, substructures and chemically distinct stellar components. The effects of interactions with dwarf galaxies on the content and morphology of the Galactic disk are still being explored. Recent studies have identified kinematically distinct stellar substructures and moving groups of stars in our Galaxy, which may have extragalactic origins. There is also mounting evidence that stellar overdensities (regions with greater-than-average stellar density) at the interface between the outer disk and the halo could have been caused by the interaction of a dwarf galaxy with the disk. Here we report a spectroscopic analysis of 14 stars from two stellar overdensities, each lying about five kiloparsecs above or below the Galactic plane-locations suggestive of an association with the stellar halo. We find that the chemical compositions of these two groups of stars are almost identical, both within and between these overdensities, and closely match the abundance patterns of stars in the Galactic disk. We conclude that these stars came from the disk, and that the overdensities that they are part of were created by tidal interactions of the disk with passing or merging dwarf galaxies.


On the Kinematic Signature of the Galactic Warp As Revealed By the LAMOST-TGAS Data

ASTROPHYSICAL JOURNAL 864 (2018) ARTN 129

Y Huang, R Schonrich, X-W Liu, B-Q Chen, H-W Zhang, H-B Yuan, M-S Xiang, C Wang, Z-J Tian


Shape of LOSVDs in Barred Disks: Implications for Future IFU Surveys

ASTROPHYSICAL JOURNAL 854 (2018) ARTN 65

Z-Y Li, J Shen, M Bureau, Y Zhou, M Du, VP Debattista


Action-based dynamical models of dwarf spheroidal galaxies: application to Fornax

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 480 (2018) 927-946

R Pascale, L Posti, C Nipoti, J Binney

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