Zobrazeno 1 - 10
of 112
pro vyhledávání: '"An Z"'
Autor:
Oleg Y. Gnedin, G. Z. Brown
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 508:5935-5953
We measure the projected half-light radii of young star clusters in 31 galaxies from the Legacy Extragalactic UV Survey (LEGUS). We implement a custom pipeline specifically designed to be robust against contamination, which allows us to measure radii
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 508:1156-1164
We present new Large Binocular Telescope, Hubble Space Telescope, and Spitzer Space Telescope data for the failed supernova candidate N6946-BH1. We also report an unsuccessful attempt to detect the candidate with Chandra. The ~300,000 Lsun red superg
Autor:
S. N. Zhang, L. M. Song, Ming-Yu Ge, Q Liu, Shuinai Zhang, Prahlad Epili, Y Z Ding, F. J. Lu, J. L. Qu, Wei Wang
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 506:2712-2724
We report the orbital X-ray variability of high mass X-ray binary (HMXB) GX301--2. GX301--2 undergone a spin up process in 2018--2020 with the period evolving from $\sim$ 685 s to 670 s. The energy resolved pulse-profiles of the pulsar in 1--60 keV v
Autor:
Jia Qi, Dylan Nelson, Mark Vogelsberger, Lars Hernquist, Annalisa Pillepich, Lisa J. Kewley, Z S Hemler, Paul Torrey, Federico Marinacci, Rüdiger Pakmor, Xiangcheng Ma
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 506:3024-3048
We present the radial gas-phase, mass-weighted metallicity profiles and gradients of the TNG50 star-forming galaxy population measured at redshifts $z=$ 0--3. We investigate the redshift evolution of gradients and examine relations between gradient s
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 495 (4), pp.4334-4346. ⟨10.1093/mnras/staa1470⟩
Mon.Not.Roy.Astron.Soc.
Mon.Not.Roy.Astron.Soc., 2020, 495 (4), pp.4334-4346. ⟨10.1093/mnras/staa1470⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 495 (4), pp.4334-4346. ⟨10.1093/mnras/staa1470⟩
Mon.Not.Roy.Astron.Soc.
Mon.Not.Roy.Astron.Soc., 2020, 495 (4), pp.4334-4346. ⟨10.1093/mnras/staa1470⟩
The aim of this paper is to generalize the definition of complexity for the static self-gravitating structure in $f(R,T,Q)$ gravitational theory, where $R$ is the Ricci scalar, $T$ is the trace part of energy momentum tensor and $Q\equiv R_{\alpha\be
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 503:5715-5729
Strict registration is critical for imaging polarimetry; a highly accurate registration approach to the coronal image and imaging polarimetry of the Fe 6374 Å red coronal line have been researched in this paper. In order to improve the registration
Autor:
Astor J. Schönell, L. G. Dahmer-Hahn, Rogério Riffel, Marlon R. Diniz, Rogemar A. Riffel, Marina Bianchin, N. Z. Dametto, Thaisa Storchi-Bergmann
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 503:5161-5178
The near-infrared spectra of Active Galactic Nuclei (AGN) present emission lines of different atomic and molecular species. The mechanisms involved in the origin of these emission lines in AGN are still not fully understood. We use J and K band integ
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 503:3262-3278
We systematically analyze three GRB samples named as radio-loud, radio-quiet and radio-none afterglows, respectively. It is shown that dichotomy of the radio-loud afterglows is not necessary. Interestingly, we find that the intrinsic durations ($T_{i
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 502:6216-6224
Gaia Data Release 2 (Gaia DR2) provides high accuracy and precision astrometric parameters (position, parallax, and proper motion) for more than 1 billion sources and is revolutionizing astrometry. For a fast-moving target such as an asteroid, with m
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 500:5639-5656
We present observations from the Transiting Exoplanet Survey Satellite (TESS) of twenty bright core-collapse supernovae with peak TESS-band magnitudes $\lesssim18$ mag. We reduce this data with an implementation of the image subtraction pipeline used