Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Bord, D. J."'
The precision differential abundance (PDA) technique is applied to the mid-F stars Procyon and $\theta$ Scl using spectra from the ESO UVESPOP library. We relate PDA patterns to endogenous processes related to condensation or to exogenous processes c
Externí odkaz:
http://arxiv.org/abs/1912.06455
Autor:
Peterson, B. M., Grier, C. J., Horne, Keith, Pogge, R. W., Bentz, M. C., De Rosa, G., Denney, K. D., Martini, Paul, Sergeev, S. G., Kaspi, S., Minezaki, T., Zu, Y., Kochanek, C. S., Siverd, R. J., Shappee, B., Salvo, C. Araya, Beatty, T. G., Bird, J. C., Bord, D. J., Borman, G. A., Che, X., Chen, C. T., Cohen, S. A., Dietrich, M., Doroshenko, V. T., Drake, T., Efimov, Yu. S., Free, N., Ginsburg, I., Henderson, C. B., King, A. L., Koshida, S, Mogren, K., Molina, M., Mosquera, A. M., Motohara, K., Nazarov, S. V., Okhmat, D. N., Pejcha, O., Rafter, S., Shields, J. C., Skowron, D. M., Skowron, J., Valluri, M., van Saders, J. L., Yoshii, Y.
A large reverberation mapping study of the Seyfert 1 galaxy NGC 7469 has yielded emission-line lags for Hbeta 4861 and He II 4686 and a central black hole mass measurement of about 10 million solar masses, consistent with previous measurements. A ver
Externí odkaz:
http://arxiv.org/abs/1409.4448
Autor:
Grier, C. J., Peterson, B. M., Horne, Keith, Bentz, M. C., Pogge, R. W., Denney, K. D., De Rosa, G., Martini, Paul, Kochanek, C. S., Zu, Y., Shappee, B., Siverd, R., Beatty, T. G., Sergeev, S. G., Kaspi, S., Salvo, C. Araya, Bird, J. C., Bord, D. J., Borman, G. A., Che, X., Chen, C., Cohen, S. A., Dietrich, M., Doroshenko, V. T., Efimov, Yu. S., Free, N., Ginsburg, I., Henderson, C. B., King, A. L., Mogren, K., Molina, M., Mosquera, A. M., Nazarov, S. V., Okhmat, D. N., Pejcha, O., Rafter, S., Shields, J. C., Skowron, J., Szczygiel, D. M., Valluri, M., van Saders, J. L.
We present velocity-resolved reverberation results for five active galactic nuclei. We recovered velocity-delay maps using the maximum-entropy method for four objects: Mrk 335, Mrk 1501, 3C120, and PG2130+099. For the fifth, Mrk 6, we were only able
Externí odkaz:
http://arxiv.org/abs/1210.2397
Autor:
Grier, C. J., Peterson, B. M., Pogge, R. W., Denney, K. D., Bentz, M. C., Martini, Paul, Sergeev, S. G., Kaspi, S., Minezaki, T., Zu, Y., Kochanek, C. S., Siverd, R., Shappee, B., Stanek, K. Z., Salvo, C. Araya, Beatty, T. G., Bird, J. C., Bord, D. J., Borman, G. A., Che, X., Chen, C., Cohen, S. A., Dietrich, M., Doroshenko, V. T., Drake, T., Efimov, Yu. S., Free, N., Ginsburg, I., Henderson, C. B., King, A. L., Koshida, S., Mogren, K., Molina, M., Mosquera, A. M., Nazarov, S. V., Okhmat, D. N., Pejcha, O., Rafter, S., Shields, J. C., Skowron, J., Szczygiel, D. M., Valluri, M., van Saders, J. L.
We present the results from a detailed analysis of photometric and spectrophotometric data on five Seyfert 1 galaxies observed as a part of a recent reverberation mapping program. The data were collected at several observatories over a 140-day span b
Externí odkaz:
http://arxiv.org/abs/1206.6523
Autor:
Grier, C. J., Peterson, B. M., Pogge, R. W., Denney, K. D., Bentz, M. C., Martini, Paul, Sergeev, S. G., Kaspi, S., Zu, Y., Kochanek, C. S., Shappee, B. J., Stanek, K. Z., Salvo, C. Araya, Beatty, T. G., Bird, J. C., Bord, D. J., Borman, G. A., Che, X., Chen, C., Cohen, S. A., Dietrich, M., Doroshenko, V. T., Efimov, Yu. S., Free, N., Ginsburg, I., Henderson, C. B., Horne, Keith, King, A. L., Mogren, K., Molina, M., Mosquera, A. M., Nazarov, S. V., Okhmat, D. N., Pejcha, O., Rafter, S., Shields, J. C., Skowron, J., Szczygiel, D. M., Valluri, M., van Saders, J. L.
We present the first results from a detailed analysis of photometric and spectrophotometric data on the narrow-line Seyfert 1 galaxy Mrk 335, collected over a 120-day span in the fall of 2010. From these data we measure the lag in the He II 4686 broa
Externí odkaz:
http://arxiv.org/abs/1110.6179
We present the first spectroscopic verification of a bona fide chemically peculiar (CP) star in the Large Magellanic Cloud. CP stars reside on the upper main sequence and are characterized by strong global stellar magnetic fields with a predominant d
Externí odkaz:
http://arxiv.org/abs/1011.6162
Autor:
Bord, D. J.
Publikováno v:
Transactions of the Kansas Academy of Science (1903-), 1980 Jan 01. 83(4), 187-199.
Externí odkaz:
https://www.jstor.org/stable/3628408
Publikováno v:
Publications of the Astronomical Society of the Pacific, 1977 Oct 01. 89(531), 720-723.
Externí odkaz:
https://www.jstor.org/stable/40677098
Publikováno v:
Publications of the Astronomical Society of the Pacific, 1987 Jul 01. 99(617), 623-628.
Externí odkaz:
https://www.jstor.org/stable/40678973
Publikováno v:
Publications of the Astronomical Society of the Pacific, 1986 Oct 01. 98(608), 948-955.
Externí odkaz:
https://www.jstor.org/stable/40678788