Results 101 to 110 of about 579,982 (342)

STELLAR KINEMATICS AND METALLICITIES IN THE ULTRA-FAINT DWARF GALAXY RETICULUM II [PDF]

, 2015
We present Magellan/M2FS, Very Large Telescope/GIRAFFE, and Gemini South/GMOS spectroscopy of the newly discovered Milky Way satellite Reticulum II. Based on the spectra of 25 Ret II member stars selected from Dark Energy Survey imaging, we measure a ...
J. Simon, A. Drlica-Wagner, Ting S. Li, B. Nord, M. Geha, K. Bechtol, E. Balbinot, E. Buckley-Geer, Huan Lin, J. Marshall, B. Santiago, L. Strigari, Mei-Yu Wang, Risa Wechsler, Risa Wechsler, B. Yanny, T. Abbott, A. Bauer, Gary Bernstein, E. Bertin, D. Brooks, D. Burke, D. Burke, D. Capozzi, A. Rosell, M. Kind, M. Kind, C. D'Andrea, L. Costa, D. DePoy, S. Desai, H. Diehl, S. Dodelson, S. Dodelson, C. Cunha, J. Estrada, A. Evrard, A. F. Neto, E. Fernandez, D. Finley, B. Flaugher, J. Frieman, J. Frieman, E. Gaztañaga, D. Gerdes, D. Gruen, R. Gruendl, R. Gruendl, K. Honscheid, D. James, S. Kent, K. Kuehn, N. Kuropatkin, O. Lahav, M. Maia, M. March, P. Martini, C. Miller, R. Miquel, R. Ogando, A. Romer, A. Roodman, A. Roodman, E. Rykoff, E. Rykoff, M. Sako, E. Sánchez, M. Schubnell, I. Sevilla, R. C. Smith, M. Soares-Santos, F. Sobreira, E. Suchyta, M. Swanson, G. Tarlé, J. Thaler, D. Tucker, V. Vikram, A. Walker, W. Wester   +79 more
semanticscholar   +1 more source

The MASSIVE Survey. XII. Connecting Stellar Populations of Early-type Galaxies to Kinematics and Environment [PDF]

Astrophysical Journal, 2019
We measure the stellar populations as a function of the radius for 90 early-type galaxies (ETGs) in the MASSIVE survey, a volume-limited integral-field spectroscopic (IFS) galaxy survey targeting all northern-sky ETGs with an absolute K-band magnitude of
J. Greene, M. Veale, Chung-Pei Ma, Jens Thomas, Matthew E. Quenneville, J. Blakeslee, J. Walsh, A. Goulding, J. Ito   +8 more
semanticscholar   +1 more source

The Stellar and Gaseous Kinematics in NGC 253 [PDF]

The Astrophysical Journal, 1998
This paper presents observations with intermediate spectral and spatial resolution along the major and minor axes of the starburst galaxy NGC 253. The spectral ranges analyzed are in the region of the stellar MgIb (5175 A), the near IR CaII triplet (8550 A) absorption features, and the region of the Halpha emission line.
Prada, Francisco, Gutierrez, Carlos M., McKeith, C. D.   +2 more
openaire   +2 more sources

Meniscus Pixel Printing for Contact‐Lens Vision Sensing and Robotic Control

Advanced Functional Materials, EarlyView.
A visual‐sensing contact lens is enabled by meniscus pixel printing (MPP), which rapidly patterns a 200 µm perovskite photodetector pixel in 1 s without masks, vacuum processing, or bulky equipment. A deep‐learning‐based super‐resolution reconstructs sparse on‐lens signals into 80 × 80 high‐resolution visual information, while AI‐driven eye‐tracking ...
Byung‐Hoon Gong, Dohyean Kim, Jiyun Jeong, Taekyeong Kim, Soon‐sung Kwon, Junyoung Seo, Il Jeon, Im Doo Jung   +7 more
wiley   +1 more source

The MASSIVE Survey. XX. A Triaxial Stellar Dynamical Measurement of the Supermassive Black Hole Mass and Intrinsic Galaxy Shape of Giant Radio Galaxy NGC 315

The Astrophysical Journal
We present a new dynamical measurement of the supermassive black hole mass and intrinsic shape of the stellar halo of the massive radio galaxy NGC 315 as part of the MASSIVE survey.
Jacob Pilawa, Emily R. Liepold, Chung-Pei Ma, Jonelle L. Walsh, Jenny E. Greene   +4 more
doaj   +1 more source

Orbital decomposition of the nuclear regions in the early-type galaxy FCC 47: Unveiling the nuclear cluster origin

Astronomy & Astrophysics
Context. Nuclear star clusters (NSCs) are among the densest stellar systems in the Universe and often coexist with supermassive black holes (SMBHs) at galaxy centres.
Lamprecht J., Feldmeier-Krause A., Lyubenova M., Fahrion K., Thater S., Jethwa P., Reiter S., Falcón-Barroso J., Maindl T. I., Santucci G., Breda I.   +10 more
doaj   +1 more source

The stellar kinematics of corotating spiral arms in Gaia mock observations [PDF]

, 2015
We have observed an N-body/Smoothed Particle Hydrodynamics simulation of a Milky Way like barred spiral galaxy. We present a simple method that samples N-body model particles into mock Gaia stellar observations and takes into account stellar populations,
J. Hunt, D. Kawata, R. Grand, I. Minchev, S. Pasetto, M. Cropper   +5 more
semanticscholar   +1 more source

Stellar Kinematics in Star-Forming Regions [PDF]

Symposium - International Astronomical Union, 1987
High-precision radial-velocity studies of four star-forming regions: λ Orionis, NGC 2264, the Trapezium cluster and Taurus-Auriga, are completed or in process (in collaboration with Latham, Marschall and Hartmann). Single-order (∼ 50 Å, central wavelength 5200 Å) echelle spectra have been obtained for late-type pre-main sequence stars.
openaire   +1 more source

Kinematics and stellar disk modeling of lenticular galaxies [PDF]

Astrophysical Bulletin, 2012
18 pages, 6 figures, slightly shortened ...
Zasov, A. V., Khoperskov, A. V., Katkov, I. Yu., Afanasiev, V. L., Kaisin, S. S.   +4 more
openaire   +2 more sources

Structure Formation in Butterfly Scales: Interplay of Genetic Control, Mechanical Instabilities, and Dynamic Material Properties

Advanced Functional Materials, EarlyView.
Butterfly wing scales are intricate cuticular functional nanosctructures. This perspective suggests that spatially varying material properties, cytoskeletal constraints, and growth‐driven mechanical instabilities shape the resulting nanoscale architectures created from single cells.
Anupama Prakash, Victoria Lloyd, Yi Yang, Anna‐Lee Jessop, Anthony McDougal, Primož Pirih, Guillaume Duclos, Andrew Parnell, Mathias Kolle, Nicola J. Nadeau, Bodo D. Wilts   +10 more
wiley   +1 more source