Some spectra on http://www.star.le.ac.uk/~pjw/axis_0302/ AXIS Observing Report ~~~~~~~~~~~~~~~~~~~~~ Dates: 2002 March 23,24,25 Instrument: ALFOSC on NOT Observer: Pete Wheatley Night 1: Weather: 1st half of night lost due to high cloud. Gradual improvement after 1am but high sky background due to moon illumination of cloud. Clear from around 3am. Seeing: Rapid variability through clouds. Generally between 1.2 and 1.8arcsec. CCD Windowing: Didn't use windowing because of support astronomer's worry about gradient in bias frames. Rotator: Rotator set to -90 (north to top, east to left) for all except XBSJ1228 where rotated to field -19.65 to put fainter candidate also on slit. Cal. frames: Biases in evening and morning. He and Ne arcs and halogen flats after each field. Skyflats with all setups at dawn. Observations: Source Mag Grism Slit Expo. Comments Mkn_3_007_A 11.0 #7 1.8" 600s Stellar spectrum B2_1028_024_A 13.7 #4 1.8" 1800s High sky bgd. Source just detected? Must be fainter than 13.7. Image (lc230033) shows it to be extended. XBSJ1228 #4 1.8" 1200s Tried one of the brighter BSS sources. Image (e.g. lc230034) reveals 2nd faint candidate very close to A. Used rotator to put both on slit, lc230034 Bright source: Late type stellar spectrum. Faint source: Can't extract spectrum, but can see spectral features in the image. MS1229_003_A 19.5 #4 1.8" 1800s At least one **broad emission line**. 2nd nearby line may be poorly subtracted sky line. Possible other broad features toward the blue. HD17555_027_A 18.7 #4 1.8" 1800s Image (lc230050) shows extended. Clouds again during spectrum exposure. Several possible narrow lines, but most associated with sky lines. However the line at pixel 1020 is clearly present also in the raw image. Also probably the line at pixel 1000. src12 #4 1.3" 2400s Ultrasoft source. Image (lc230056) shows extended. A nearby source looks v different to DSS image (fainter?, or extreme colour?). Spectrum is low s/n. Possible broad emission line at pixel 570? WR110_024_A #4 1.8" ???s Had trouble finding target because finding chart was strangely orientated. Tried a 1800s exposure, but twilight bgd increasing rapidly. Tried to reduce exposure using addtime, but this resulted in immediate readout. Exposure must be ~800s. Spectrum shows active M star. Night 2: Conditions: Beautiful at sunset. Then immediately into clouds and high humidity all night. Tried to open three times, but had to shut immediately due to humidity. Ice formed on telescope, so couldn't open when humidity dropped for last hour of night. Observations: None. Night 3: Conditions: High humidity until around 2315, then dropped rapidly. Closed briefly again for humidity at about 0110. Seeing: 1.2-1.6arcsec Rotator: field -90 Windowing: using 200 wide window in x starting at pix 800. No binning. Observations: Source Mag Grism Slit Expo. Comments MS0737_004_A 16.3 #4 1.8" ?200? Stellar MS0737_002_A 17.5 #4 1.8" 900s Beautiful AGN src22 #4 1.8" 1800s Ultrasoft src. B21028_008_A 18.7 - - - Tried, but too close to moon. Aborted exposure src5 #4 1.8" 1800s Ultrasoft src: narrowish emission line AGN ngc4968_007_A 17.5 #4 1.8" 1800s Broad emission line ngc5044_006_A 18.6 #4 1.8" 1800s AGN a1837_075_B 15.6 #4 1.8" 1200s Active star UZLib_030_A 17.9 #4 1.8" 1800s Active star? Field_002_A 18.1 #4 1.8"?1000? AGN Field_001_A 19.0 #4 1.8" 1600s AGN src9 #4 1.8" 1800s ultrasoft src g21aip_068_d 16.5 #7 1.8" 300s Stellar?, heavily reddened? g21aip_056_d 16.5 #7 1.8" 300s active star?