J/AJ/104/28 J/AJ/104/28 Homogeneous JHKL photometry of BL Lac Objects M Bersanelli P Bouchet R Falomo E G Tanzi Astron. J. 104 28 1992 1992AJ....104...28B BL Lac objects Photometry, infrared Homogeneous J, H, K, L, photometry of 42 BL Lacertae objects is presented. The observations cover a period of 3 yr with a typical time interval of 6 months.

Name BL Lac name --- z Redshift --- Av Absorption mag X/R X or Radio flag --- Comments Comments --- Ref References number=1 References to Table 1 1. Feigelson et al. (1986) 2. Wardle, Moore and Angel (1984) 3. Fosbury and Disney (1976) 4. Carswell et al. (1974) 5. Gioia et al. (1984) 6. Disney, Peterson and Rodgers (1974) 7. Bowyer, Brodie, Clarke, and Henry (1984) 8. Falomo et al (1991) 9. Smith et al (1988) 10. Falomo and Treves (1990) 11. Falomo et al. (1987) 12. Falomo et al. (1988) 13. Tanzi et al. (1986) 14. Worrall et al. (1984) 15. Tapia et al. (1977) 16. Bregman et al. (1984) 17. Wall et al. (1986) 18. Filippenko et al. (1986) 19. Ulmer et al. (1983) 20. Falomo et al. (1989) 21. Ledden and O'Dell (1985) 22. Nicolson et al. (1979) 23. Fricke et al. (1983) 24. Landau et al. (1986) 25. Falomo (1991a) 26. Stocke et al. (1982) 27. Stickel et al. (1991) 28. Brissenden et al (1990) 29. Stickel et al (1988) 30. Falomo and Tanzi (1991) 31. Halpern et al (1991) 32. Falomo (1991b) 33. Falomo (1990) 34. Peterson et al. (1973) 35. Owen and Mufson (1977) 36. Condon et al (1977) 37. Bolton et al (1975) 38. Ulrich (1981) 39. Bolton and Wall (1970) 40. Bolton et al (1975) 41. Bolton et al (1966) 42. Remillard et al (1989) --- Name BL Lac name --- MJD Modified Julian Date JD J Flux in filter mJy e_J mean error on J mJy H Flux in filter mJy e_H mean error on H mJy K Flux in filter mJy e_K mean error on K mJy L Flux in filter mJy e_L mean error on L mJy Name BL Lac name number= a) Near a bright star b) Significant positive curvature c) Spectral index is derived after subtraction of the thermal component --- Note Notes (see below) number= a) Near a bright star b) Significant positive curvature c) Spectral index is derived after subtraction of the thermal component --- amean spectral index (F proportional (nu)**(-a) number= a) Near a bright star b) Significant positive curvature c) Spectral index is derived after subtraction of the thermal component --- Nobs Number of observations number= a) Near a bright star b) Significant positive curvature c) Spectral index is derived after subtraction of the thermal component --- amin Minimal value of spectral index number= a) Near a bright star b) Significant positive curvature c) Spectral index is derived after subtraction of the thermal component --- e_amin mean error on amin number= a) Near a bright star b) Significant positive curvature c) Spectral index is derived after subtraction of the thermal component --- amax Maximal value of spectral index number= a) Near a bright star b) Significant positive curvature c) Spectral index is derived after subtraction of the thermal component --- e_amax mean error on amax number= a) Near a bright star b) Significant positive curvature c) Spectral index is derived after subtraction of the thermal component --- pcGal Fractional estimated flux contribution of the host galaxy to the observed spectrum. number= a) Near a bright star b) Significant positive curvature c) Spectral index is derived after subtraction of the thermal component % Francois Ochsenbein CDS 1993Mar19 J_AJ_104_28.xml