UCHIDA, K. I., SELLGREN, K., WERNER, M. <AP. J. (LETTERS), 493, L109> 980215
     DO THE INFRARED EMISSION FEATURES NEED ULTRAVIOLET EXCITATION?
UCHIDA, K., MORRIS, M., SERABYN, E. <AP. J., 351, 443> 900308
     A STUDY OF AFGL 5376: AN UNUSUAL EXTENDED INFRARED SOURCE NEAR THE GALACTIC CENTER
UEMIZU, K., BOCK, J. J., KAWADA, M., LANGE, A. E., MATSUMOTO, T., WATABE, T., YOST, S. A. <AP. J. (LETTERS), 506, L15> 981022
     A SEARCH FOR A NEAR-INFRARED HALO AROUND NGC 4565
ULLA, A., THEJLL, P. <ASTR. AP. SUPPL., 132, 1> 981044
     INFRARED FLUX EXCESSES FROM HOT SUBDWARFS. II. 72 MORE OBJECTS
ULLA, A., THEJLL, P., KIPPER, T., JORGENSEN, U. G. <ASTR. AP., 319, 244> 970320
     INFRARED OBSERVATIONS OF PECULIAR CARBON STARS
ULRICH, B. T. <AP. J., 146, 288> 661001
     FURTHER OBSERVATIONS OF EXTREMELY COOL STARS
ULRICH, B. T. <AP. J., 147, 858> 670204
     ERRATUM TO ``FURTHER OBSERVATIONS OF EXTREMELY COOL STARS''
ULRICH, M. -H., KINMAN, T. D., LYNDS, C. R., RIEKE, G. H., EKERS, R. D. <AP. J., 198, 261> 750606
     NONTHERMAL CONTINUUM RADIATION IN THREE ELLIPTICAL GALAXIES
ULRICH, R. K., SHAFTER, A. W., HAWKINS, G., KNAPP, G. <AP. J., 267, 199> 830408
     SPECTRAL ENERGY DISTRIBUTIONS OF YOUNG STELLAR OBJECTS. I. A TURBOSPHERIC MODEL FOR DR TAURI
ULRICH, R. K., WOOD, B. C. <AP. J., 244, 147> 810210
     OBSERVATIONS AND ANALYSIS OF THE HELIUM I RECOMBINATION LINES 5876 AND 10830 IN EIGHT T TAURI STARS
ULVESTAD, J. S. <NASA X-693-77-165> 770601
     IRC+10216: AN EVOLVING INFRARED SOURCE
ULVESTAD, J. S. <NASA X-693-77-186> 770701
     CIT 6: A STRONG INFRARED SOURCE
UNAVANE, M., GILMORE, G. <M. N. R. A. S., 295, 145> 980323
     NEAR-INFRARED STAR COUNTS AS A TEST OF A GALACTIC BAR STRUCTURE
UNAVANE, M., GILMORE, G., EPCHTEIN, N., SIMON, G., TIPHENE, D., DE BATZ, B. <M. N. R. A. S., 295, 119> 980322
     THE INNER GALAXY RESOLVED AT IJK USING DENIS DATA
UNGER, S. W., CHAPMAN, J. M., COHEN, R. J., HAWARDEN, T. G., MOUNTAIN, C. M. <M. N. R. A. S., 220, 1P> 860516
     A SEARCH FOR OH MASER EMISSION FROM SPIRAL GALAXIES
UNGER, S. W., WOLSTENCROFT, R. D., PEDLAR, A., SAVAGE, A., CLOWES, R. G., LEGGETT, S. K., PARKER, Q. A. <M. N. R. A. S., 236, 425> 890123
     THE RELATIONSHIP BETWEEN THE RADIO AND FAR-INFRARED EMISSION IN IRAS GALAXIES: VLA OBSERVATIONS OF A LARGE WELL-DEFINED SAMPLE AT 1420 MHZ
UNGLAUB, K., BUES, I. <ASTR. AP., 233, 159> 900721
     THE NATURE OF THE HOT SUBDWARF SB 744
USON, J. M., BOUGHN, S. P. <AP. J., 369, 38> 910314
     LARGE-APERTURE BVRJK PHOTOMETRY OF RICH ABELL CLUSTERS: CONSTRAINTS ON DARK MATTER
USUDA, T., SUGAI, H., KAWABATA, H., INOUE, M. Y., KATAZA, H., TANAKA, M. <AP. J., 464, 818> 960610
     FABRY-PEROT IMAGING OF H2 1-0 S(1), 2-1 S(1),AND BRACKETT-GAMMA EMISSION IN THE ORION NEBULA
UYAMA, K., MATSUMOTO, T., THOMAS, J. A. <P. A. S. J., 36, 477> 840001
     NEAR-INFRARED OBSERVATIONS OF NGC 253