Zobrazeno 1 - 10
of 810
pro vyhledávání: '"Metcalfe, N."'
Autor:
Mazzucchelli, C., Bañados, E., Venemans, B. P., Decarli, R., Farina, E. P., Walter, F., Eilers, A.-C., Rix, H.-W., Simcoe, R., Stern, D., Fan, X., Schlafly, E., Rosa, G. De, Hennawi, J., Chambers, K. C., Greiner, J., Burgett, W., Draper, P. W., Kaiser, N., Kudritzki, R.-P., Magnier, E., Metcalfe, N., Waters, C., Wainscoat, R. J.
Quasars are galaxies hosting accreting supermassive black holes; due to their brightness, they are unique probes of the early universe. To date, only a few quasars have been reported at z > 6.5 (< 800 Myr after the big bang). In this work, we present
Externí odkaz:
http://hdl.handle.net/10150/626178
http://arizona.openrepository.com/arizona/handle/10150/626178
http://arizona.openrepository.com/arizona/handle/10150/626178
Autor:
Bañados, E., Venemans, B. P., Decarli, R., Farina, E. P., Mazzucchelli, C., Walter, F., Fan, X., Stern, D., Schlafly, E., Chambers, K. C., Rix, H-W., Jiang, L., McGreer, I., Simcoe, R., Wang, F., Yang, J., Morganson, E., Rosa, G. De, Greiner, J., Baloković, M., Burgett, W. S., Cooper, T., Draper, P. W., Flewelling, H., Hodapp, K. W., Jun, H. D., Kaiser, N., Kudritzki, R.-P., Magnier, E. A., Metcalfe, N., Miller, D., Schindler, J.-T., Tonry, J. L., Wainscoat, R. J., Waters, C., Yang, Q.
Luminous quasars at z > 5.6 can be studied in detail with the current generation of telescopes and provide us with unique information on the first gigayear of the universe. Thus far, these studies have been statistically limited by the number of quas
Externí odkaz:
http://hdl.handle.net/10150/622336
http://arizona.openrepository.com/arizona/handle/10150/622336
http://arizona.openrepository.com/arizona/handle/10150/622336
Autor:
Lunnan, R., Chornock, R., Berger, E., Milisavljevic, D., Jones, D. O., Rest, A., Fong, W., Fransson, C., Margutti, R., Drout, M. R., Blanchard, P. K., Challis, P., Cowperthwaite, P. S., Foley, R. J., Kirshner, R. P., Morrell, N., Riess, A. G., Roth, K. C., Scolnic, D., Smartt, S. J., Smith, K. W., Villar, V. A., Chambers, K. C., Draper, P. W., Huber, M. E., Kaiser, N., Kudritzki, R.-P., Magnier, E. A., Metcalfe, N., Waters, C.
We present photometry and spectroscopy of PS1-14bj, a hydrogen-poor superluminous supernova (SLSN) at redshift z = 0.5215 discovered in the last months of the Pan-STARRS1 Medium Deep Survey. PS1-14bj stands out because of its extremely slow evolution
Externí odkaz:
http://hdl.handle.net/10150/624068
http://arizona.openrepository.com/arizona/handle/10150/624068
http://arizona.openrepository.com/arizona/handle/10150/624068
Autor:
Eltvedt, Alice, Shanks, T., Metcalfe, N., Ansarinejad, B., Barrientos, L. F., Sharp, R., Malik, U., Murphy, D. N. A., Irwin, M., Wilson, M., Alexander, D. M., Kovacs, A., Garcia-Bellido, J., Ahlen, S., Brooks, D., de la Macorra, A., Font-Ribera, A., Gontcho, S. Gontcho a, Honscheid, K., Meisner, A., Miquel, R., Nie, J., Tarlé, G., Vargas-Magaña, M., Zhou, Z.
We present the VST ATLAS Quasar Survey, consisting of $\sim1,229,000$ quasar (QSO) candidates with $16
Externí odkaz:
http://arxiv.org/abs/2211.07324
Taking advantage of $\sim4700$ deg$^2$ optical coverage of the Southern sky offered by the VST ATLAS survey, we construct a new catalogue of photometrically selected galaxy groups and clusters using the {\sc orca} cluster detection algorithm. The cat
Externí odkaz:
http://arxiv.org/abs/2207.03725
We investigate the `Local Hole', an anomalous under-density in the local galaxy environment, by extending our previous galaxy $K-$band number-redshift and number-magnitude counts to $\approx 90\%$ of the sky. Our redshift samples are taken from the 2
Externí odkaz:
http://arxiv.org/abs/2107.08505
Autor:
Ansarinejad, B., Shanks, T., Bielby, R. M., Metcalfe, N., Infante, L., Murphy, D. N. A., Rosario, D. J., Stach, S. M.
We compare the contribution of Active Galactic Nuclei (AGN) and star-formation towards dust heating in sub-mm galaxies (SMGs). We have used ALMA at $0."1$ resolution to image a complete flux-limited sample of seven sub-mm sources previously shown to
Externí odkaz:
http://arxiv.org/abs/2107.00694
Publikováno v:
2021MNRAS.505.1509S
High redshift sub-millimetre galaxies (SMGs) are usually assumed to be powered by star-formation. However, it has been clear for some time that $>$20% of such sources brighter than $\approx3$mJy host quasars. Here we analyse a complete sample of 12 s
Externí odkaz:
http://arxiv.org/abs/2010.07934
We revisit our mapping of the `Local Hole', a large underdensity in the local galaxy redshift distribution that extends out to redshift, $z\approx0.05$ and a potential source of outflows that may perturb the global expansion rate and thus help mitiga
Externí odkaz:
http://arxiv.org/abs/1909.01878
Autor:
Liu, T., Gezari, S., Ayers, M., Burgett, W., Chambers, K., Hodapp, K., Huber, M. E., Kudritzki, R. -P., Metcalfe, N., Tonry, J., Wainscoat, R., Waters, C.
We present a systematic search for periodically varying quasar and supermassive black hole binary (SMBHB) candidates in the Pan-STARRS1 Medium Deep Survey. From $\sim9,000$ color-selected quasars in a $\sim50$ deg$^{2}$ sky area, we initially identif
Externí odkaz:
http://arxiv.org/abs/1906.08315