Tables for the conversion of spectrophotometer readings to A.O.C.S. photometric color values

1951 ◽  
Vol 28 (6) ◽  
pp. 239-241
Author(s):  
Egbert Freyer ◽  
V. B. Shelburne
Keyword(s):  
Photometric Color

The completeness of Gaia-selected samples of white dwarfs

2019 ◽  
Vol 15 (S357) ◽  
pp. 170-174
Author(s):  
Terry D. Oswalt ◽  
Jay B. Holberg ◽  
Edward M. Sion
Keyword(s):  
White Dwarf ◽  
Proper Motion ◽  
White Dwarfs ◽  
Color Index ◽  
Apparent Magnitude ◽  
Order Of Magnitude ◽  
Gaia Dr2 ◽  
Photometric Color

AbstractThe Gaia DR2 has dramatically increased the ability to detect faint nearby white dwarfs. The census of the local white dwarf population has recently been extended from 25 pc to 50 pc, effectively increasing the sample by roughly an order of magnitude. Here we examine the completeness of this new sample as a function of variables such as apparent magnitude, distance, proper motion, photometric color index, unresolved components, etc.

scholarly journals Surface properties of icy transneptunian objects from the second ESO large program

2009 ◽  
Vol 5 (S263) ◽  
pp. 186-191
Author(s):  
Francesca E. DeMeo ◽  
Maria Antonietta Barucci ◽  
Alvaro Alvarez-Candal ◽  
Catherine de Bergh ◽  
Sonia Fornasier ◽  
...  
Keyword(s):  
Solar System ◽  
Surface Properties ◽  
New Technology ◽  
Outer Solar System ◽  
Large Telescope ◽  
Very Large Telescope ◽  
Large Program ◽  
Transneptunian Objects ◽  
Photometric Color

AbstractAn analysis is well underway for the data from the second Large Program (PI M. A. Barucci) dedicated to investigating the surface properties of Centaurs and Transneptunian objects through spectroscopic, photometric color, lightcurve, and polarimetric observations using the European Southern Observatory (ESO) Very Large Telescope (VLT) and New Technology Telescope (NTT). 45 objects were observed between 2006 and 2008, allowing a broad characterization of at least the largest and brightest objects among this population. In this report, we summarize all our findings, but focus on the analysis of the presence of ices such as methane, ethane, nitrogen, ammonia hydrate, methanol, and particularly H2O which is so abundant throughout the outer solar system.

scholarly journals Influence of soybean storage conditions on crude oil quality

2010 ◽  
Vol 14 (3) ◽  
pp. 303-308 ◽  
Author(s):  
Ernandes R. de Alencar ◽  
Lêda R. D. Faroni ◽  
Luiz A. Peternelli ◽  
Marco T. C. da Silva ◽  
André R. Costa
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Crude Oil ◽  
Color Index ◽  
Oil Quality ◽  
Storage Conditions ◽  
Grain Moisture ◽  
Stored Grains ◽  
Photometric Color

This study was done to evaluate the quality of crude oil from soybeans stored under different conditions. The grains were harvested at 18% (w.b.) moisture content (m.c.), and after drying to 11.2, 12.8 and 14.8% they were stored at 20, 30 or 40 ºC. Changes in free fatty acid (FFA) content, peroxide, iodine and photometric color index of the extracted oil were determined at 45-day intervals for 180-day storage. In general, oil FFA content increased in all the samples, except in grains at 11.2% m.c. and stored at 20 ºC. The peroxide and photometric color index increased significantly, independently of storage conditions; however, the increase was more accentuated in oil extracted of stored grains at high m.c. and temperature. It was concluded that crude oil quality is not affected during 6-month storage of soybeans up to 15.0% m.c. (w.b.) at 20 ºC, and for storage at 30 ºC, the grain moisture up to 13% maintains oil quality within the Brazilian market standards.

Photometric color indices of extrasolar planets

Icarus ◽  
1971 ◽  
Vol 15 (2) ◽  
pp. 341-342 ◽  
Author(s):  
Gregory L. Matloff
Keyword(s):  
Extrasolar Planets ◽  
Color Indices ◽  
Photometric Color

scholarly journals AHUBBLEDIAGRAM FROM TYPE II SUPERNOVAE BASED SOLELY ON PHOTOMETRY: THE PHOTOMETRIC COLOR METHOD

2015 ◽  
Vol 815 (2) ◽  
pp. 121 ◽  
Author(s):  
T. de Jaeger ◽  
S. González-Gaitán ◽  
J. P. Anderson ◽  
L. Galbany ◽  
M. Hamuy ◽  
...  
Keyword(s):  
Type Ii ◽  
Photometric Color
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