Results 81 to 90 of about 70,641 (273)

Detectability of large-scale counter-rotating stellar disks in galaxies with integral-field spectroscopy [PDF]

, 2021
Michela Rubino, A. Pizzella, L. Morelli, L. Coccato, Elisa Portaluri, Victor P. Debattista, E. M. Corsini, E. Dalla Bontà   +7 more
openalex   +1 more source

High‐Coercivity Nd2Fe14B/α‐Fe Nanocomposites With Ultrafine Nanocrystalline Structure via Zr‐Induced Synchronous Precipitation

Rare Metals, EarlyView.
ABSTRACT Nanocomposite permanent magnets with reduced rare‐earth content represent a promising class of materials for next‐generation high‐performance applications. However, asynchronous precipitation of soft and hard magnetic phases often results in grain size mismatch and limited coercivity.
Xiaowei Zhang, Jun Li, Chang Liu, Renquan Wang, Hongfu Liu, Xiaotao Bao, Ying Liu   +6 more
wiley   +1 more source

HII Galaxies with 3D Spectroscopy

, 2006
4 pages, 3 figures. To appear in " Highlights of Spanish Astrophysics IV " Proceedings of the VII Scientific Meeting of the Spanish Astronomical Society (SEA) held in Barcelona, September 12-15 ...
Kehrig, C., Vilchez, J. M., Sanchez, S. F., Telles, E., Martin-Gordon, D., Lopez-Martin, L.   +5 more
openaire   +2 more sources

The MOSDEF-KCWI Survey: Spectral Properties of Lyα Halos around z ∼ 2 Star-forming Galaxies

The Astrophysical Journal
We present Keck Cosmic Web Imager integral field observations of extended Ly α emission in the circumgalactic medium of 27 typical star-forming galaxies at z ∼ 2, drawn from the Multi-Object Spectrometer for Infra-Red Exploration (MOSFIRE) Deep Evolution
Andrew Weldon, Zhiyuan Song, Naveen A. Reddy, Alice E. Shapley   +3 more
doaj   +1 more source

Spectroscopy of CASSOWARY gravitationally lensed galaxies in SDSS: characterization of an extremely bright reionization-era analogue at z = 1.42 [PDF]

, 2023
Ramesh Mainali, Daniel P. Stark, Tucker Jones, Richard S. Ellis, Yashar Hezaveh, Jane R. Rigby   +5 more
openalex   +1 more source

Improving Cycle Life and Capacity Retention in PVMPO‖Li Dual‐Ion Lithium‐Organic Batteries Using an EC‐Free and FEC Additive Containing Electrolyte

Small Methods, EarlyView.
The major bottleneck of PVMPO‐based positive electrodes is electrode degradation during extended cycling with EC‐containing electrolytes. This issue is mitigated by using EC‐free electrolytes with FEC additives, which exhibit reduced interfacial resistance, fewer surface cracks, improved capacity retention, and suppressed electrode degradation, thereby
Sathiya Priya Panjalingam, Somayeh Ahadi, Jakob Michael Hesper, Uta Rodehorst, Sascha Nowak, Birgit Esser, Martin Winter, Peter Bieker   +7 more
wiley   +1 more source

Infrared Spectroscopy of Blue Dwarf Galaxies

The Astrophysical Journal, 1997
We present a survey of the near-infrared emission lines of eight blue dwarf galaxies. These galaxies have advantages for study of the excitation of the interstellar medium by starbursts because the effects are relatively undiluted by the quiescent stellar population, the star formation episodes usually appear to be of short duration, and the effects of
L. Vanzi, George H. Rieke
openaire   +2 more sources

Identification of High-redshift Galaxy Overdensities in GOODS-N and GOODS-S

The Astrophysical Journal
We conduct a systematic search for high-redshift galaxy overdensities at 4.9 < z _spec < 8.9 in both the Great Observatories Origins Deep Survey (GOODS)-N and GOODS-S fields using James Webb Space Telescope/Near-Infrared Camera (JWST/NIRCam) imaging from
Jakob M. Helton, Fengwu Sun, Charity Woodrum, Kevin N. Hainline, Christopher N. A. Willmer, Marcia J. Rieke, George H. Rieke, Stacey Alberts, Daniel J. Eisenstein, Sandro Tacchella, Brant Robertson, Benjamin D. Johnson, William M. Baker, Rachana Bhatawdekar, Andrew J. Bunker, Zuyi Chen, Eiichi Egami, Zhiyuan Ji, Roberto Maiolino, Chris Willott, Joris Witstok   +20 more
doaj   +1 more source

Kinematics of a high-redshift galaxy: A case study [PDF]

Serbian Astronomical Journal, 2000
A kinematics of a z = 2.81 galaxy toward bright QSO 0528-250, as inferred from the absorption spectroscopy is discussed. There are sufficient arguments for a far-reaching conclusion that we are observing an older, uninvolved version of the local Galactic
Ćirković M.M.
doaj   +1 more source

The Nature of LINERs [PDF]

, 1999
We present $J$-band ($1.15-1.35 \mu$m) spectroscopy of a sample of nine galaxies showing some degree of LINER activity (classical LINERs, weak-[O {\sc i}] LINERs and transition objects), together with $H$-band spectroscopy for some of them.
Almudena Alonso‐Herrero, Dekker H., Forbes D. A., Garcia-Vargas M. L., George H. Rieke, Gonzalez-Delgado M. R., Gonzalez-Delgado M. R., Heckman T. M., Hummer D. G., Jones H. R. A., Jones H. R. A., Joseph C. Shields, Lumsden S. L., Marcia J. Rieke, Nussbaumer H., Oliva E., Simpson C., Tadhunter C. N., Veron P., Veron-Cetty M.-P.   +19 more
core   +2 more sources