Results 31 to 40 of about 62,204 (222)
Surface photometry of shell galaxies
The Astrophysical Journal, 1986 We present CCD surface photometry in four passbands of shells around three bright elliptical galaxies, NGC 2865, NGC 3923 and NGC 5018. Colors, profiles across the shells, and the precise geometry of the shells are determined. The observations all favor a merger process as the origin of the shells, and the colors are consistent with those of a recently
B. P. Fort +4 more
openaire +1 more source
The Way We Measure: Comparison of Methods to Derive Radial Surface Brightness Profiles [PDF]
, 2016 The breaks and truncations in the luminosity profile of face-on spiral galaxies offer valuable insights in their formation history. The traditional method of deriving the surface photometry profile for face-on galaxies is to use elliptical averaging.
de Jong, R. S. +2 more
core +2 more sources
PROBES. I. A Compendium of Deep Rotation Curves and Matched Multiband Photometry
The Astrophysical Journal Supplement Series, 2022 We present the Photometry and Rotation Curve Observations from Extragalactic Surveys (PROBES) compendium of extended rotation curves for 3163 late-type spirals, with matching homogeneous multiband photometry for 1677 of them.
Connor Stone +4 more
doaj +1 more source
Dark haloes of spiral galaxies: ISO photometry [PDF]
Monthly Notices of the Royal Astronomical Society, 1998 18 pages, 9 .gif figures, also available at ftp://ftp.ast.cam.ac.uk/pub/gil/ISOHALOS .
Gilmore, Gerard, Unavane, M.
openaire +2 more sources
Reconstructing Galaxy Spectral Energy Distributions from Broadband Photometry [PDF]
, 1999 We present a novel approach to photometric redshifts, one that merges the advantages of both the template fitting and empirical fitting algorithms, without any of their disadvantages.
A. J. Connolly +5 more
core +2 more sources
The Bochum Survey of the Southern Galactic Disk: III. Complete Data Release
Astronomische Nachrichten, Volume 347, Issue 3, March 2026.ABSTRACT The Southern Galactic Disk Survey (GDS) monitored a mosaic of 268 fields along a 6°$$ {6}^{{}^{\circ}} $$‐wide stripe in the southern Galactic disk with simultaneous observations in r′$$ {r}^{\prime } $$ and i′$$ {i}^{\prime } $$ (7m≲r′,i′≲18m$$ {7}^{\mathrm{m}}\lesssim {r}^{\prime },{i}^{\prime}\lesssim {18}^{\mathrm{m}} $$) from September ...
Julia Blex +8 more
wiley +1 more source
PEARLS: Near-infrared Photometry in the JWST North Ecliptic Pole Time Domain Field
The Astrophysical Journal Supplement Series, 2023 We present near-infrared (NIR) ground-based Y , J , H , and K imaging obtained in the James Webb Space Telescope (JWST) North Ecliptic Pole Time Domain Field (NEP TDF) using the MMT-Magellan Infrared Imager and Spectrometer on the MMT.
Christopher N. A. Willmer +25 more
doaj +1 more source
Engineering Reports, Volume 8, Issue 3, March 2026.The graphical abstract illustrates a flower classification model relying on the human visual system. The model captures images, simulates visual attention and photometric perception, extracts features of shape and color, and classifies flowers by using an optimized neural network that enhances recognition accuracy by mimicking the human eye's focusing ...
Arpan Singh +2 more
wiley +1 more source
Recent Star Formation in Sextans A
, 1998 We investigate the relationship between the spatial distributions of stellar populations and of neutral and ionized gas in the Local Group dwarf irregular galaxy Sextans A.
Aparicio A. +17 more
core +2 more sources
Al‐Khadhaf: The first camera‐observed (H5–6) meteorite fall from Oman
Meteoritics &Planetary Science, Volume 61, Issue 3, Page 522-547, March 2026.Abstract A fireball camera system installed in 2022 by the Oman Meteorite Monitoring Project (OMMP) as part of the Global Fireball Observatory (GFO) recorded a 3.2 s fireball on March 8, 2022 at 8:15 p.m. UTC. A meteoroid of 4 ± 2 kg entered the atmosphere at 14.0 km/s.
Anna Zappatini +18 more
wiley +1 more source