Search Results - "Hammel, H"

Endothelial cell crosstalk improves browning but hinders white adipocyte maturation in 3D engineered adipose tissue by Hammel, Jennifer H, Bellas, Evangelia

“…Abstract Central to the development of adipose tissue (AT) engineered models is the supporting vasculature. It is a key part of AT function and long-term…”
Get full text

Endogenous CO2 ice mixture on the surface of Europa and no detection of plume activity by Villanueva, G L, Hammel, H B, Milam, S N, Faggi, S, Kofman, V, Roth, L, Hand, K P, Paganini, L, Stansberry, J, Spencer, J, Protopapa, S, Strazzulla, G, Cruz-Mermy, G, Glein, C R, Cartwright, R, Liuzzi, G

“…Editor’s summaryEuropa, an icy moon of Jupiter, has a subsurface ocean beneath a crust of water ice. Solid carbon dioxide (CO2) has previously been observed on…”
Get full text

High S/N Keck and Gemini AO imaging of Uranus during 2012–2014: New cloud patterns, increasing activity, and improved wind measurements by Sromovsky, L.A., de Pater, I., Fry, P.M., Hammel, H.B., Marcus, P.

“…[Display omitted] •High S/N Keck and Gemini AO images of Uranus were obtained during 2012–2014.•Winds were obtained for 850 targets, exceeding sum of all…”
Get full text

Variability of Disk Emission in Pre-Main-Sequence and Related Stars. I. HD 31648 and HD 163296: Isolated Herbig Ae Stars Driving Herbig-Haro Flows by Sitko, Michael L, Carpenter, William J, Kimes, Robin L, Wilde, J. Leon, Lynch, David K, Russell, Ray W, Rudy, Richard J, Mazuk, Stephan M, Venturini, Catherine C, Puetter, Richard C, Grady, Carol A, Polomski, Elisha F, Wisnewski, John P, Brafford, Suellen M, Hammel, H. B, Perry, R. Brad

“…Infrared photometry and spectroscopy covering a time span of a quarter- century are presented for HD 31648 (MWC 480) and HD 163296 (MWC 275). Both are isolated…”
Get full text

Methane depletion in both polar regions of Uranus inferred from HST/STIS and Keck/NIRC2 observations by Sromovsky, L.A., Karkoschka, E., Fry, P.M., Hammel, H.B., de Pater, I., Rages, K.

“…•We used HST/STIS spectra of Uranus to determine the CH4 volume mixing ratio (VMR).•New 2012 results with N pole in view are similar to 2002 results with S in…”
Get full text

Clouds and aerosols on Uranus: Radiative transfer modeling of spatially-resolved near-infrared Keck spectra by de Kleer, Katherine, Luszcz-Cook, Statia, de Pater, Imke, Ádámkovics, Máté, Hammel, H.B.

“…•We observed Uranus’ atmosphere with the Keck telescope in 2010 and 2011.•We use a radiative transfer program to model near-infrared spectra.•We find more…”
Get full text

Retrieving Neptune’s aerosol properties from Keck OSIRIS observations. I. Dark regions by Luszcz-Cook, S.H., de Kleer, K., de Pater, I., Adamkovics, M., Hammel, H.B.

“…We present and analyze three-dimensional data cubes of Neptune from the OSIRIS integral-field spectrograph on the 10-m W.M. Keck II telescope, from 26 July…”
Get full text

Triplicity and physical characteristics of Asteroid (216) Kleopatra by Descamps, P., Marchis, F., Berthier, J., Emery, J.P., Duchêne, G., de Pater, I., Wong, M.H., Lim, L., Hammel, H.B., Vachier, F., Wiggins, P., Teng-Chuen-Yu, J.-P., Peyrot, A., Pollock, J., Assafin, M., Vieira-Martins, R., Camargo, J.I.B., Braga-Ribas, F., Macomber, B.

“…► In this study we observed and modelled the Asteroid (216) Kleopatra through different technics. ► The work revealed two moonlets orbiting Kleopatra. ► From…”
Get full text

JWST molecular mapping and characterization of Enceladus’ water plume feeding its torus by Villanueva, G. L., Hammel, H. B., Milam, S. N., Kofman, V., Faggi, S., Glein, C. R., Cartwright, R., Roth, L., Hand, K. P., Paganini, L., Spencer, J., Stansberry, J., Holler, B., Rowe-Gurney, N., Protopapa, S., Strazzulla, G., Liuzzi, G., Cruz-Mermy, G., El Moutamid, M., Hedman, M., Denny, K.

“…Enceladus is a prime target in the search for life in our Solar System, having an active plume that is likely to be connected to a large liquid water…”
Get full text

A spatially resolved high spectral resolution study of Neptune’s stratosphere by Greathouse, Thomas K., Richter, Matthew, Lacy, John, Moses, Julianne, Orton, Glenn, Encrenaz, Therese, Hammel, H.B., Jaffe, Dan

“…► Temperature retrievals are similar to previous measurements of Neptune’s stratosphere. ► No meridional temperature variations are found within the errors. ►…”
Get full text

Dwarf planet Ceres: Ellipsoid dimensions and rotational pole from Keck and VLT adaptive optics images by Drummond, J.D., Carry, B., Merline, W.J., Dumas, C., Hammel, H., Erard, S., Conrad, A., Tamblyn, P., Chapman, C.R.

“…•Ceres, the second target for the DAWN mission, from adaptive optics images at Keck and the VLT over ten years is found to be an oblate spheroid with diameters…”
Get full text

Seeing double at Neptune’s south pole by Luszcz-Cook, S.H., de Pater, I., Ádámkovics, M., Hammel, H.B.

“…Keck near-infrared images of Neptune from UT 26 July 2007 show that the cloud feature typically observed within a few degrees of Neptune’s south pole had split…”
Get full text

Uranus at equinox: Cloud morphology and dynamics by Sromovsky, L.A., Fry, P.M., Hammel, H.B., Ahue, W.M., de Pater, I., Rages, K.A., Showalter, M.R., van Dam, M.A.

“…As the 7 December 2007 equinox of Uranus approached, collaboration between ring and atmosphere observers in the summer and fall of 2007 produced a substantial…”
Get full text

Water‐Ice Dominated Spectra of Saturn's Rings and Small Moons From JWST by Hedman, M. M., Tiscareno, M. S., Showalter, M. R., Fletcher, L. N., King, O. R. T., Harkett, J., Roman, M. T., Rowe‐Gurney, N., Hammel, H. B., Milam, S. N., El Moutamid, M., Cartwright, R. J., Pater, I., Molter, E. M.

“…JWST measured the infrared spectra of Saturn's rings and several of its small moons (Epimetheus, Pandora, Telesto, and Pallene) as part of Guaranteed Time…”
Get full text

Post-equinox dynamics and polar cloud structure on Uranus by Sromovsky, L.A., Fry, P.M., Hammel, H.B., de Pater, I., Rages, K.A.

“…► Keck and Gemini obs. were used in 2011 to create high-S/N near-IR images of Uranus. ► Cloud tracking defined a 250m/s jet peak at 60°N and solid rotation…”
Get full text

A dynamical solution of the triple asteroid system (45) Eugenia by Marchis, F., Lainey, V., Descamps, P., Berthier, J., Van Dam, M., de Pater, I., Macomber, B., Baek, M., Le Mignant, D., Hammel, H.B., Showalter, M., Vachier, F.

“…We present the first dynamical solution of the triple asteroid system (45) Eugenia and its two moons Petit–Prince (diameter ∼ 7 km) and S/2004 (45) 1 (diameter…”
Get full text

Long-term atmospheric variability on Uranus and Neptune by Hammel, H.B., Lockwood, G.W.

“…Long-term photometric measurements of Uranus and Neptune through 2005 show variations in brightness. For Uranus, much of the variation can be interpreted as…”
Get full text

The Dark Spot in the atmosphere of Uranus in 2006: Discovery, description, and dynamical simulations by Hammel, H.B., Sromovsky, L.A., Fry, P.M., Rages, K., Showalter, M., de Pater, I., van Dam, M.A., LeBeau, R.P., Deng, X.

“…We report the first definitive detection of a discrete dark atmospheric feature on Uranus in 2006 using visible and near-infrared images from the Hubble Space…”
Get full text

Dark Side of the Rings of Uranus by de Pater, Imke, Hammel, H.B, Showalter, Mark R, van Dam, Marcos A

“…The rings of Uranus are oriented edge-on to Earth in 2007 for the first time since their 1977 discovery. This event provides a rare opportunity to observe…”
Get full text

Episodic bright and dark spots on Uranus by Sromovsky, L.A., Hammel, H.B., de Pater, I., Fry, P.M., Rages, K.A., Showalter, M.R., Merline, W.J., Tamblyn, P., Neyman, C., Margot, J.-L., Fang, J., Colas, F., Dauvergne, J.-L., Gómez-Forrellad, J.M., Hueso, R., Sánchez-Lavega, A., Stallard, Thomas

“…► A spot of high and increasing brightness was discovered on Uranus on 26 October 2011. ► This 24°N spot was found about 500 mb above the 1.2bar methane…”
Get full text