home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... Refining Refracted Moonlight . ... Through even a modest telescope the lunar terrain offers a rewarding spectacle. ... Moreover, moonlight halves the amount of time each month during which these objects can be studied. ... So how did professional astronomers feel about the Moon at the beginning of the 1900s, when the study of the lunar surface was still the domain of optical Earth-bound telescopes? ...

SUBROUTINE TAP_SAHA ( ZELEM, TEMP, NEL, ION_MIN, ION_MAX, U, CHI, IONFRN, STATUS ) . ... Provides ionisation potential for a given ion. ... Purpose: Calculate relative abundances of ions of species K. Language: Fortan 90 Invocation: CALL TAP_SAHA ( zelem, temp, nel, ion_min, ion_max, u, chi, : ion_frn, status ) Description: Calculate relative ionisation fractions of ions j = 1,.... for atomic species (Z), given temperature and electron density, using the Saha ionisation equation. ... ION_MAX. ...

... DOI: 10.1089/ast.2008.0251 Hypothesis Article Signatures of a Shadow Biosphere Paul C.W. Davies,1 Steven A. Benner,2 Carol E. Cleland,3 Charles H. Lineweaver,4 Christopher P. McKay,5 and Felisa Wolfe-Simon6 Abstract Astrobiologists are aware that extraterrestrial life might differ from known life, and considerable thought has been given to possible signatures associated with weird forms of life on other planets. ... The invention of the microscope uncovered an unexpected microbial world. ...

... Printed in the U.S.A. GALACTIC S STARS : INVESTIGATIONS OF COLOR , MOTION, AND SPECTRAL FEATURES Elizabeth Otto1 , Paul J. Green2 , and Richard O. Gray3 1 Department of Astronomy, The Ohio State University, Columbus ... University, Boone, NC 28608, USA Received 2011 April 29; accepted 2011 July 19; published 2011 August 19 ABSTRACT Known bright S stars , recognized as such by their enhanced s-process abundances and C/O ratio, are typically members of the asymptotic giant branch ... J - H color...