New observations of the Cloverleaf, the gravitationally lensed broad absorption line quasar at z = 2.56, have been conducted using the IRAM 30-m telescope at Pico Veleta. In addition to the CO J=3-2 line previously reported (Barvainis et al 1994, Nature 371, 586), we now have detections of the J=4-3 and J=7-6 lines of CO and an upper limit on (13) CO(3-2). We also solidly detected the fine structure line of carbon, CI((3P_1) - (3P_0) ), and have a probable detection of CI((3P_2) - (3P_1) ). These data will be presented along with preliminary interpretation of the CO line ratios and implications of the CI lines.
American Astronomical Society Meeting Abstracts
- Pub Date:
- December 1994