Zobrazeno 1 - 10
of 795
pro vyhledávání: '"Keane, J. A."'
Autor:
Taillard, A., WakelaM, V., Gratier, P., Dartois, E., Chabot, M., Noble, J. A., Keane, J. V., Boogert, A. C. A., Harsono, D.
Cold cores are an early step of star formation, characterized by densities > 10$^4$ cm$^{-3}$, low temperatures (< 15 K), and very low external UV radiation. We investigate the physico-chemical processes at play to tracing the origin of molecules tha
Externí odkaz:
http://arxiv.org/abs/2301.01288
Publikováno v:
mSphere, Vol 9, Iss 9 (2024)
ABSTRACT Twitching motility is a form of bacterial surface translocation powered by the type IV pilus (T4P). It is frequently analyzed by interstitial colony expansion between agar and the polystyrene surfaces of petri dishes. In such assays, the twi
Externí odkaz:
https://doaj.org/article/0527d9c5a0d94778b9a0d01e809438c6
Autor:
Lisse, C. M., Gladstone, G. R., Young, L. A., Cruikshank, D. P., Sandford, S. A., Schmitt, B., Stern, S. A., Weaver, H. A., Umurhan, O., Pendleton, Y. J., Keane, J. T., Parker, J. M., Binzel, R. P., Earle, A. M., Horanyi, M., El-Maarry, M., Cheng, A. F., Moore, J. M., McKinnon, W. B., Grundy, W. M., Kavelaars, J. J., Linscott, I. R., Lyra, W., Lewis, B. L., Britt, D. T., Spencer, J. R., Olkin, C. B., McNutt, R. L., Elliott, H. A., Dello-Russo, N., Steckloff, J. K., Neveu, M., Mousis, O.
We present new, ice species-specific New Horizons/Alice upper gas coma production limits from the 01 Jan 2019 MU69/Arrokoth flyby of Gladstone et al. (2021) and use them to make predictions about the rarity of majority hypervolatile (CO, N$_2$, CH$_4
Externí odkaz:
http://arxiv.org/abs/2203.08888
Autor:
Umurhan, O. M., Grundy, W. M., Bird, M. K., Beyer, R., Keane, J. T., Linscott, I. R., Birch, S., Bierson, C., Young, L. A., Stern, S. A., Lisse, C. M., Howett, C. J. A., Protopapa, S., Spencer, J. R., Binzel, R. P., Mckinnon, W. B., Lauer, T. R., Weaver, H. A., Olkin, C. B., Singer, K. N., Verbiscer, A. J., Parker, A. H.
A near surface thermal model for Arrokoth is developed based on the recently released $10^5$ facet model of the body. This thermal solution takes into account Arrokoth's surface re-radiation back onto itself. The solution method exploits Arrokoth's p
Externí odkaz:
http://arxiv.org/abs/2202.10485
Autor:
Tucker, M. A., Ashall, C., Shappee, B. J., Vallely, P. J., Kochanek, C. S., Huber, M. E., Anand, G. S., Keane, J. V., Hsiao, E. Y., Holoien, T. W. -S.
We present new photometric and spectroscopic observations of SN 2019yvq, a Type Ia supernova (SN Ia) exhibiting several peculiar properties including an excess of UV/optical flux within days of explosion, a high SiII velocity, and a low peak luminosi
Externí odkaz:
http://arxiv.org/abs/2009.07856
Autor:
Lisse, C. M., Young, L. A., Cruikshank, D. P., Sandford, S. A., Schmitt, B., Stern, S. A., Weaver, H. A., Umurhan, O., Pendleton, Y. J., Keane, J. T., Gladstone, G. R., Parker, J. M., Binzel, R. P., Earle, A. M., Horanyi, M., El-Maarry, M., Cheng, A. F., Moore, J. M., McKinnon, W. B., Grundy, W. M., Kavelaars, J. J., Linscott, I. R., Lyra, W., Lewis, B. L., Britt, D. T., Spencer, J. R., Olkin, C. B., McNutt, R. L., Elliott, H. A., Dello-Russo, N., Steckloff, J. K., Neveu, M., Mousis, O.
Publikováno v:
Icarus, Volume 356, article id. 114072 (2021)
We discuss in a thermodynamic, geologically empirical way the long-term nature of the stable majority ices that could be present in Kuiper Belt Object 2014 MU69 after its 4.6 Gyr residence in the EKB as a cold classical object. Considering the stabil
Externí odkaz:
http://arxiv.org/abs/2009.02277
Autor:
Stern, S. A., Weaver, H. A., Spencer, J. R., Olkin, C. B., Gladstone, G. R., Grundy, W. M., Moore, J. M., Cruikshank, D. P., Elliott, H. A., McKinnon, W. B., Parker, J. Wm., Verbiscer, A. J., Young, L. A., Aguilar, D. A., Albers, J. M., Andert, T., Andrews, J. P., Bagenal, F., Banks, M. E., Bauer, B. A., Bauman, J. A., Bechtold, K. E., Beddingfield, C. B., Behrooz, N., Beisser, K. B., Benecchi, S. D., Bernardoni, E., Beyer, R. A., Bhaskaran, S., Bierson, C. J., Binzel, R. P., Birath, E. M., Bird, M. K., Boone, D. R., Bowman, A. F., Bray, V. J., Britt, D. T., Brown, L. E., Buckley, M. R., Buie, M. W., Buratti, B. J., Burke, L. M., Bushman, S. S., Carcich, B., Chaikin, A. L., Chavez, C. L., Cheng, A. F., Colwell, E. J., Conard, S. J., Conner, M. P., Conrad, C. A., Cook, J. C., Cooper, S. B., Custodio, O. S., Ore, C. M. Dalle, Deboy, C. C., Dharmavaram, P., Dhingra, R. D., Dunn, G. F., Earle, A. M., Egan, A. F., Eisig, J., El-Maarry, M. R., Engelbrecht, C., Enke, B. L., Ercol, C. J., Fattig, E. D., Ferrell, C. L., Finley, T. J., Firer, J., Fischetti, J., Folkner, W. M., Fosbury, M. N., Fountain, G. H., Freeze, J. M., Gabasova, L., Glaze, L. S., Green, J. L., Griffith, G. A., Guo, Y., Hahn, M., Hals, D. W., Hamilton, D. P., Hamilton, S. A., Hanley, J. J., Harch, A., Harmon, K. A., Hart, H. M., Hayes, J., Hersman, C. B., Hill, M. E., Hill, T. A., Hofgartner, J. D., Holdridge, M. E., Horányi, M., Hosadurga, A., Howard, A. D., Howett, C. J. A., Jaskulek, S. E., Jennings, D. E., Jensen, J. R., Jones, M. R., Kang, H. K., Katz, D. J., Kaufmann, D. E., Kavelaars, J. J., Keane, J. T., Keleher, G. P., Kinczyk, M., Kochte, M. C., Kollmann, P., Krimigis, S. M., Kruizinga, G. L., Kusnierkiewicz, D. Y., Lahr, M. S., Lauer, T. R., Lawrence, G. B., Lee, J. E., Lessac-Chenen, E. J., Linscott, I. R., Lisse, C. M., Lunsford, A. W., Mages, D. M., Mallder, V. A., Martin, N. P., May, B. H., McComas, D. J., McNutt, R. L., Mehoke, Jr. D. S., Mehoke, T. S., Nelson, D. S., Nguyen, H. D., Núñez, J. I., Ocampo, A. C., Owen, W. M., Oxton, G. K., Parker, A. H., Pätzold, M., Pelgrift, J. Y., Pelletier, F. J., Pineau, J. P., Piquette, M. R., Porter, S. B., Protopapa, S., Quirico, E., Redfern, J. A., Regiec, A. L., Reitsema, H. J., Reuter, D. C., Richardson, D. C., Riedel, J. E., Ritterbush, M. A., Robbins, S. J., Rodgers, D. J., Rogers, G. D., Rose, D. M., Rosendall, P. E., Runyon, K. D., Ryschkewitsch, M. G., Saina, M. M., Salinas, M. J., Schenk, P. M., Scherrer, J. R., Schlei, W. R., Schmitt, B., Schultz, D. J., Schurr, D. C., Scipioni, F., Sepan, R. L., Shelton, R. G., Showalter, M. R., Simon, M., Singer, K. N., Stahlheber, E. W., Stanbridge, D. R., Stansberry, J. A., Steffl, A. J., Strobel, D. F., Stothoff, M. M., Stryk, T., Stuart, J. R., Summers, M. E., Tapley, M. B., Taylor, A., Taylor, H. W., Tedford, R. M., Throop, H. B., Turner, L. S., Umurhan, O. M., Van Eck, J., Velez, D., Versteeg, M. H., Vincent, M. A., Webbert, R. W., Weidner, S. E., Weigle II, G. E., Wendel, J. R., White, O. L., Whittenburg, K. E., Williams, B. G., Williams, K. E., Williams, S. P., Winters, H. L., Zangari, A. M., Zurbuchen, T. H.
Publikováno v:
Science 364, eaaw9771 (2019)
The Kuiper Belt is a distant region of the Solar System. On 1 January 2019, the New Horizons spacecraft flew close to (486958) 2014 MU69, a Cold Classical Kuiper Belt Object, a class of objects that have never been heated by the Sun and are therefore
Externí odkaz:
http://arxiv.org/abs/2004.01017
Autor:
Spencer, J. R., Stern, S. A., Moore, J. M., Weaver, H. A., Singer, K. N., Olkin, C. B., Verbiscer, A. J., McKinnon, W. B., Parker, J. Wm., Beyer, R. A., Keane, J. T., Lauer, T. R., Porter, S. B., White, O. L., Buratti, B. J., El-Maarry, M. R., Lisse, C. M., Parker, A. H., Throop, H. B., Robbins, S. J., Umurhan, O. M., Binzel, R. P., Britt, D. T., Buie, M. W., Cheng, A. F., Cruikshank, D. P., Elliott, H. A., Gladstone, G. R., Grundy, W. M., Hill, M. E., Horanyi, M., Jennings, D. E., Kavelaars, J. J., Linscott, I. R., McComas, D. J., McNutt, R. L., Protopapa, S., Reuter, D. C., Schenk, P. M., Showalter, M. R., Young, L. A., Zangari, A. M., Abedin, A. Y., Beddingfield, C. B., Benecchi, S. D., Bernardoni, E., Bierson, C. J., Borncamp, D., Bray, V. J., Chaikin, A. L., Dhingra, R. D., Fuentes, C., Fuse, T., Gay, P. L, Gwyn, S. D. J., Hamilton, D. P., Hofgartner, J. D., Holman, M. J., Howard, A. D., Howett, C. J. A., Karoji, H., Kaufmann, D. E., Kinczyk, M., May, B. H., Mountain, M., Pätzold, M., Petit, J. M., Piquette, M. R., Reid, I. N., Reitsema, H. J., Runyon, K. D., Sheppard, S. S., Stansberry, J. A., Stryk, T., Tanga, P., Tholen, D. J., Trilling, D. E., Wasserman, L. H.
Publikováno v:
Science, 367, aay3999 (2020)
The Cold Classical Kuiper Belt, a class of small bodies in undisturbed orbits beyond Neptune, are primitive objects preserving information about Solar System formation. The New Horizons spacecraft flew past one of these objects, the 36 km long contac
Externí odkaz:
http://arxiv.org/abs/2004.00727
Autor:
McKinnon, W. B., Richardson, D. C., Marohnic, J. C., Keane, J. T., Grundy, W. M., Hamilton, D. P., Nesvorny, D., Umurhan, O. M., Lauer, T. R., Singer, K. N., Stern, S. A., Weaver, H. A., Spencer, J. R., Buie, M. W., Moore, J. M., Kavelaars, J. J., Lisse, C. M., Mao, X., Parker, A. H., Porter, S. B., Showalter, M. R., Olkin, C. B., Cruikshank, D. P., Elliott, H. A., Gladstone, G. R., Parker, J. W., Verbiscer, A. J., Young, L. A., Team, the New Horizons Science
Publikováno v:
Science 367, eaay6620 (2020)
The New Horizons spacecraft's encounter with the cold classical Kuiper belt object (486958) Arrokoth (formerly 2014 MU69) revealed a contact-binary planetesimal. We investigate how it formed, finding it is the product of a gentle, low-speed merger in
Externí odkaz:
http://arxiv.org/abs/2003.05576
Autor:
Grundy, W. M., Bird, M. K., Britt, D. T., Cook, J. C., Cruikshank, D. P., Howett, C. J. A., Krijt, S., Linscott, I. R., Olkin, C. B., Parker, A. H., Protopapa, S., Ruaud, M., Umurhan, O. M., Young, L. A., Ore, C. M. Dalle, Kavelaars, J. J., Keane, J. T., Pendleton, Y. J., Porter, S. B., Scipioni, F., Spencer, J. R., Stern, S. A., Verbiscer, A. J., Weaver, H. A., Binzel, R. P., Buie, M. W., Buratti, B. J., Cheng, A., Earle, A. M., Elliott, H. A., Gabasova, L., Gladstone, G. R., Hill, M. E., Horanyi, M., Jennings, D. E., Lunsford, A. W., McComas, D. J., McKinnon, W. B., McNutt Jr., R. L., Moore, J. M., Parker, J. W., Quirico, E., Reuter, D. C., Schenk, P. M., Schmitt, B., Showalter, M. R., Singer, K. N., Weigle II, G. E., Zangari, A. M.
The outer Solar System object (486958) Arrokoth (provisional designation 2014 MU$_{69}$) has been largely undisturbed since its formation. We study its surface composition using data collected by the New Horizons spacecraft. Methanol ice is present a
Externí odkaz:
http://arxiv.org/abs/2002.06720