SIMULATED OPTICAL-IMAGES OF GALAXIES AT Z-APPROXIMATELY 1 USING ULTRAVIOLET IMAGES OF NEARBY GALAXIES

被引:30
作者
BOHLIN, RC
CORNETT, RH
HILL, JK
HILL, RS
LANDSMAN, WB
OCONNELL, RW
NEFF, SG
SMITH, AM
STECHER, TP
机构
[1] ST SYST CORP,LANHAM,MD 20706
[2] UNIV VIRGINIA,DEPT ASTRON,CHARLOTTESVILLE,VA 22903
[3] NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,GREENBELT,MD 20771
关键词
COSMOLOGY; GALAXIES; PHOTOMETRY; STRUCTURE; ULTRAVIOLET; SPECTRA;
D O I
10.1086/169666
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Ultraviolet sounding rocket images of several nearby galaxies are used to simulate the appearance in optical bandpasses of similar systems at redshifts z = 0.5-2.67, as observed by the WFPC on HST and by ground-based instruments. Since the morphology of galaxies is a strong function of the wavelength, the appearance of galaxies at large redshifts is subject to a large k-correction effect. The strong dependence of monochromatic surface brightness on redshift [I-lambda approximately (1 + z)-5] also implies that observed morphology of distant systems will be crucially dependent on the limiting surface brightness set by the sky background. Although the angle sub-tended by sources depends only weakly on z, the fraction of a galaxy whose surface brightness is above the detection threshold varies strongly with z. Morphological distinctions of spiral from elliptical, spiral from irregular, and barred from unbarred types become more difficult, as does accurate evaluation of interactions or of the local environment.
引用
收藏
页码:12 / 27
页数:16
相关论文
共 32 条
[1]   IMAGES IN THE ROCKET ULTRAVIOLET - STAR FORMATION AND EXTINCTION IN THE M51 SYSTEM [J].
BOHLIN, RC ;
CORNETT, RH ;
HILL, JK ;
OCONNELL, RW ;
STECHER, TP .
ASTROPHYSICAL JOURNAL, 1990, 352 (01) :55-67
[2]   HIGH-RESOLUTION PHOTOGRAPHS IN THE ROCKET ULTRAVIOLET OF THE ORION NEBULA [J].
BOHLIN, RC ;
HILL, JK ;
STECHER, TP ;
WITT, AN .
ASTROPHYSICAL JOURNAL, 1982, 255 (01) :87-&
[3]   IMAGES IN THE ROCKET ULTRAVIOLET - THE STELLAR POPULATION IN THE CENTRAL BULGE OF M31 [J].
BOHLIN, RC ;
CORNETT, RH ;
HILL, JK ;
HILL, RS ;
OCONNELL, RW ;
STECHER, TP .
ASTROPHYSICAL JOURNAL, 1985, 298 (02) :L37-&
[4]   IMAGES IN THE ROCKET ULTRAVIOLET - THE STARBURST IN THE NUCLEUS OF M83 [J].
BOHLIN, RC ;
CORNETT, RH ;
HILL, JK ;
SMITH, AM ;
STECHER, TP .
ASTROPHYSICAL JOURNAL, 1983, 274 (02) :L53-&
[5]  
BOHLIN RC, 1990, APJ, V381, P154
[6]  
BRUZUAL AG, 1980, ASTROPHYS J, V241, P25, DOI 10.1086/158314
[7]  
BRUZUAL AG, 1988, UNDERSTANDING GALAXI, P161
[8]   COLORS AND MAGNITUDES PREDICTED FOR HIGH REDSHIFT GALAXIES [J].
COLEMAN, GD ;
WU, CC ;
WEEDMAN, DW .
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1980, 43 (03) :393-416
[9]  
DEVAUCOULEURS G, 1976, 2ND REFERENCE CATALO
[10]  
GRIFFITHS RE, 1985, WIDE FIELD PLANETARY