Results 111 to 120 of about 482,777 (285)
Color Research &Application, EarlyView.ABSTRACT The heterochromatic brightness matching experiment was conducted by adjusting the luminance of the achromatic color to have the same brightness as the chromatic colors. There were eight different sessions with different background and stimulus luminance levels. Twenty observers participated in each session.
Garam Seong, Youngshin Kwak, Hyosun Kim
wiley +1 more source
The Spitzer Local Volume Legacy (LVL) Global Optical Photometry [PDF]
, 2014 We present the global optical photometry of 246 galaxies in the Local Volume Legacy (LVL) survey. The full volume-limited sample consists of 258 nearby (D < 11 Mpc) galaxies whose absolute B-band magnitude span a range of -9.6 < M_B < -20.7 mag. A composite optical (UBVR) data set is constructed from observed UBVR and SDSS ugriz imaging, where the ...
arxiv +1 more source
Towards Precision Photometry with Extremely Large Telescopes: the Double Subgiant Branch of NGC 1851 [PDF]
, 2015 The Extremely Large Telescopes currently under construction have a collecting area that is an order of magnitude larger than the present largest optical telescopes.
Andersen, D. R. +6 more
core +2 more sources
Optical CCD photometry of the microquasar LS 5039 [PDF]
Astronomy & Astrophysics, 2004 We report optical CCD observations of the microquasar LS 5039. Its photometric behaviour is studied over differ- ent orbital periods with a time separation of three years. We do not detect evidences of an ellipsoidal modulation above the ±0.01 mag level, thus confirming the previous results reported by Clark et al. (2001).
Josep Martí +4 more
openaire +1 more source
Contributions to Plasma Physics, EarlyView.ABSTRACT Experiments of isochoric heating by protons of solid material were recently performed at LULI laser facilities. In these experiments, protons, produced from target normal sheath acceleration (TNSA) of Au foil with the PICO2000 laser, deposit their energy into an aluminum or copper foil initially at room temperature and solid density.
Sébastien Rassou +9 more
wiley +1 more source
Analytical and empirical measurement of fiber photometry signal volume in brain tissue [PDF]
arXiv, 2018 Fiber photometry permits monitoring fluorescent indicators of neural activity in behaving animals. Optical fibers are typically used to excite and collect fluorescence from genetically-encoded calcium indicators expressed by a subset of neurons in a circuit of interest.
arxiv
Optical identification of the LMC supersoft source RXJ0527.8-6954 from MACHO Project photometry [PDF]
, 1997 We identify the likely optical counterpart to the LMC supersoft X-ray source RXJ0527.8-6954, and hence recover HV2554. This identification is based on an analysis of approximately 4 years of optical photometry obtained serendipitously via the MACHO project.
arxiv +1 more source
A census of $\rho$ Oph candidate members from Gaia DR2
, 2019 The Ophiuchus cloud complex is one of the best laboratories to study the earlier stages of the stellar and protoplanetary disc evolution. The wealth of accurate astrometric measurements contained in the Gaia Data Release 2 can be used to update the ...
Bombrun, A. +8 more
core +1 more source
Resolving Stellar Populations outside the Local Group: MAD observations of UKS2323-326 [PDF]
, 2008 We present a study aimed at deriving constraints on star formation at intermediate ages from the evolved stellar populations in the dwarf irregular galaxy UKS2323-326.
A. Baruffolo +40 more
core +1 more source
Optical Photometry of SN 1993J: 1995 to 2003
The Astronomical Journal, 2004 24 pages, 7 figures, accepted for publication in ...
Weidong Li +6 more
openaire +4 more sources