J/ApJ/647/328 FUSE survey of OVI in ISM (Dixon+, 2006) ================================================================================ An extended FUSE survey of diffuse O VI emission in the interstellar medium. Dixon W.V.D., Sankrit R., Otte B. =2006ApJ...647..328D ================================================================================ ADC_Keywords: Ultraviolet ; Interstellar medium Keywords: Galaxy: structure - ISM: general - ISM: structure - ultraviolet: ISM Abstract: We present a survey of diffuse OVI emission in the interstellar medium (ISM) obtained with the Far Ultraviolet Spectroscopic Explorer (FUSE). Spanning 5.5yr of FUSE observations, from launch through 2004 December, our data set consists of 2925 exposures along 183 sight lines, including all of those with previously published OVI detections. The data were processed using an implementation of CalFUSE version 3.1 modified to optimize the signal-to-noise ratio and velocity scale of spectra from an aperture-filling source. Description: The data sets used in our survey fall into three categories. First are the S405, S505, and Z907 programs. S405 and S505 represent background observations, some near FUSE targets (with the target at the RFPT), others with the LWRS aperture centered on the orbit pole. File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file table2.dat 177 183 FUSE Observations Contributing to Each Survey Sight Line table3.dat 111 73 OVI {lambda}1032{AA} Detections table4.dat 75 110 OVI {lambda}1032{AA} 3{sigma} upper limits -------------------------------------------------------------------------------- See also: J/ApJ/647/312 : FUSE survey of OVI in the Milky Way (Otte+, 2006) Byte-by-byte Description of file: table2.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 6 A6 --- LOS Line of sight 8-177 A170 --- FUSE-ID FUSE observation identification(s) -------------------------------------------------------------------------------- Byte-by-byte Description of file: table3.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1 I1 --- sig [2/3] 2 or 3 {sigma} detection 3- 8 A6 --- LOS Line of sight 10- 31 A22 --- Target Target Name 33- 37 F5.1 deg GLON Galactic longitude 39- 43 F5.1 deg GLAT Galactic latitude 45- 49 I5 s ExpTime Exposure time is night only 51- 52 I2 --- Bin Spectral binning in 0.013{AA}*pixel 54- 56 F3.1 10+3ph/s/cm2/sr Int Intensity (in 10^3^LU unit) 58- 60 F3.1 10+3ph/s/cm2/sr e_Int rms uncertainty on Int 62- 68 F7.2 0.1nm lambda Heliocentric wavelength 70- 73 F4.2 0.1nm e_lambda rms uncertainty on lambda 75- 77 I3 km/s FWHM Gaussian FWHM values include the smoothing imparted by the instrument optics (1) 79- 81 I3 km/s e_FWHM rms uncertainty on FWHM 83- 86 I4 km/s VLSR LSR velocity 88- 90 I3 km/s e_VLSR rms uncertainty on VLSR 92- 96 F5.3 mag E(B-V) Extinction from Schlegel et al. (1998ApJ...500..525S) 98-101 I4 10-6ct/s/arcmin2 SXR ROSAT 1/4keV emission in RU unit from Snowden et al. (1997ApJ...485..125S) 103-104 I2 10-6ct/s/arcmin2 e_SXR rms uncertainty on SXR 106-109 I4 10+3ph/s/cm2/sr IntHa ? H{alpha} intensity integrated over the velocity range 80 to +80km/s (in 10^3^LU unit) (G1) 111 I1 10+3ph/s/cm2/sr e_IntHa ? rms uncertainty on IntHa -------------------------------------------------------------------------------- Note (1): Values less than 25km/s indicate that the emission does not fill the LWRS aperture. -------------------------------------------------------------------------------- Byte-by-byte Description of file: table4.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 6 A6 --- LOS Line of sight 8- 27 A20 --- Target Target Name 29- 33 F5.1 deg GLON Galactic longitude 35- 39 F5.1 deg GLAT Galactic latitude 41- 45 I5 s ExpTime Exposure time is night only 47- 50 F4.1 10+3ph/s/cm2/sr 3slimit Intensity 3{sigma} upper limit (in 10^3^LU unit) 52- 57 F6.3 mag E(B-V) Extinction from Schlegel et al. (1998ApJ...500..525S) 59- 62 I4 10-6ct/s/arcmin2 SXR ROSAT 1/4keV emission in RU unit from Snowden et al. (1997ApJ...485..125S) 64- 66 I3 10-6ct/s/arcmin2 e_SXR rms uncertainty on SXR 68- 72 I5 10+3ph/s/cm2/sr IntHa ? H{alpha} intensity integrated over the velocity range 80 to +80km/s (in 10^3^LU unit) (G1) 74- 75 I2 10+3ph/s/cm2/sr e_IntHa ? rms uncertainty on IntHa -------------------------------------------------------------------------------- Global notes: Note (G1): From Haffner et al. (2003, Cat. ). Values without error bars were derived from the average of the surrounding pointings. Data are available only for declinations above 30{deg}. -------------------------------------------------------------------------------- History: From electronic version of the journal ================================================================================ (End) Greg Schwarz [AAS], Patricia Vannier [CDS] 08-Jul-2008