CDROM/APJS/V95/P163 Ultraviolet P Cygni Profiles (Snow+ 1994) ================================================================================ An Atlas of Ultraviolet P Cygni Profiles Theodore P. Snow, Henny J. G. L. M. Lamers, Douglas M. Lindholm, & Andrew P. Odell <1994, ApJS, 95, 163> =1994ApJS...95..163S ================================================================================ Abstract: We have selected spectra of 232 stars from the IUE archives for inclusion in an atlas intended for various uses but tailored especially for the study of stellar winds. The atlas covers the range in spectral types from O3 to F8. The full atlas covers the reduced and normalized high resolution spectra from the IUE long- and short- wavelength spectrographs. Here we discuss the selection of the stars and the data reduction, and we present in velocity units the profiles of lines formed in the stellar winds. The selected lines cover a wide range of ionizations, allowing a comparison of the profiles from different ions in the wind of each star and a comparison of the different wind lines as a function of spectral type and luminosity. We also present the basic data on the program stars to facilitate study of the dependence of wind features on stellar parameters such as luminosity, temperature, escape velocity, and v sin i. We provide an overview of the characteristic behavior of the wind lines in the H-R diagram. The complete spectra are available in digital form through the NASA Astrophysics Data System (ADS). We offer a description of the electronic database that is available through the ADS and guidelines for obtaining access to that database. Keywords: atlases -- line: profiles -- stars: early-type -- ultraviolet: stars Description: In addition to the tabular data described below, spectra for the 232 stars in this atlas are included from Figure 2 of the printed paper, as well as the 16 H-R diagrams from Figure 3. The spectra are contained in Postscript files named 'star_nnn.ps', where 'nnn' represents a number from '001' to '232', inclusive. The H-R diagrams are contained in Postscript files named 'hrnnnn.ps', where 'nnnn' represents a number corresponding to the wavelength of the ion in question, e.g. 'hr1640.ps' is the H-R diagram for He II at 1640 Angstroms. The H-R diagram for all atlas stars (Figure 1 in the printed paper) is given in file 'hrall.ps'. File Summary: -------------------------------------------------------------------------------- File Name Lrecl Records Explanations -------------------------------------------------------------------------------- table2.dat 72 281 Atlas stars and IUE observations table2.tex 70 666 LaTeX version of Table 2 table3.dat 109 232 Basic properties of atlas stars table3.tex 81 611 LaTeX version of Table 3 table4.dat 60 30 Lines selected for this atlas table4.tex 79 59 LaTeX version of Table 4 -------------------------------------------------------------------------------- Byte-by-byte Description of file: table2.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 4 I4 --- HR []? Bright Star Catalog (HR) number 5-11 I7 --- HD []? Henry Draper Catalog number 12 A1 --- HD_Comp HD Catalog component 13 1X --- --- Blank 14-21 A8 --- Name Star name 22 1X --- --- Blank 23-34 A12 --- Sp Spectral type 35 1X --- --- Blank 36-43 A8 --- IUE IUE image number 44 1X --- --- Blank 45 A1 --- Ap [LS] Aperture 46 1X --- --- Blank 47-57 A11 --- Date Exposure date, DD-MMM-YYYY 58 1X --- --- Blank 59-66 A8 --- Time Exposure time, HH:MM:SS 67-72 I6 s Texp Length of exposure -------------------------------------------------------------------------------- Byte-by-byte Description of file: table3.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 3 I3 --- Num [1,232] Star number 4-10 I7 --- HD Henry Draper Catalog number 11 A1 --- HD_Comp HD Catalog component 12 1X --- --- Blank 13-24 A12 --- Sp Spectral type 25-30 F6.2 mag V V magnitude 31-36 F6.2 mag B-V B-V color 37-41 F5.2 --- E(B-V) E(B-V) value 42-46 F5.1 mag M_V Absolute visual magnitude 47-51 F5.1 mag m-M Distance modulus 52 A1 --- f_m-M *[c] Cluster member flag 53-58 I6 K T_eff Effective temperature 59-63 F5.2 mag BC Bolometric correction 64-69 F6.1 mag M_bol Bolometric magnitude 70-74 F5.1 Msun M_star Stellar mass 75-80 F6.1 Rsun R_star Stellar radius 81-85 F5.2 --- Gamma_e Gravity reduction due to radiation pressure 86-90 I5 km/s v_esc Escape velocity 91-97 F7.1 km/s v_rad []? Radial velocity 98 1X --- --- Blank 99-104 A6 --- Bin *Indication of binarity 105 A1 --- l_vsini [< ] Limiting character for v sin i 106-108 I3 km/s vsini v sin i 109 A1 --- u_vsini Uncertainty flag for v sin i -------------------------------------------------------------------------------- Notes for file: table3.dat -------------------------------------------------------------------------------- f_m-M: 'c' indicates a cluster member from the catalog of Humphreys, R. M. 1978, ApJS, 38, 309. Bin: For B, A, and F stars, information about binarity is from the Bright Star Catalog. For most O stars (those with V < 8), this information was obtained from Gies, D. R. 1987, ApJS, 64, 545. -------------------------------------------------------------------------------- Byte-by-byte Description of file: table4.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 6 A6 --- Ion Ion for selected line 7-15 F9.3 0.1nm Lambda Wavelength of selected line 16 1X --- --- Blank 17-26 A10 --- Remark Remark on selected line 27-32 F6.2 eV EP Excitation pot., lower level of transition 33-36 I4 --- g_t Statistical wgt., lower level of transition 37-44 F8.3 --- f Oscillator strength of the line 45-46 2X --- --- blank 47-60 A14 --- Sp Spectral types plotted -------------------------------------------------------------------------------- ================================================================================ (End) Lee Brotzman [ADS] 16-Nov-94