Results 51 to 60 of about 75,560 (318)

The HARPS search for southern extrasolar planets XXI. Three new giant planets orbiting the metal-poor stars HD5388, HD181720, and HD190984

, 2010
We present the discovery of three new giant planets around three metal-deficient stars: HD5388b (1.96M_Jup), HD181720b (0.37M_Jup), and HD190984b (3.1M_Jup).
C. Lovis, C. Melo, C. Moutou, Cochran, D. Naef, D. Queloz, Dodson-Robinson, F. Bouchy, F. Pepe, Fernandes, Fischer, Flower, G. Lo Curto, Girardi, Gonzalez, Henry, Ida, Kalas, M. Mayor, Marois, Masana, Matsuo, Mayor, Mordasini, N. C. Santos, Naef, Nordström, P. Figueira, Pepe, Pollack, Queloz, Queloz, S. G. Sousa, S. Udry, Saar, Santos, Santos, Santos, Santos, Santos, Santos, Santos, Sousa, Sozzetti, Sozzetti, Udry, Udry, W. Benz, Wright   +48 more
core   +3 more sources

Sol–Gel Synthesis of Ca2.5Ag0.3Sm0.2Co4O9 Semiconducting Materials for Thermoelectric Applications in Aerospace Systems

Advanced Engineering Materials, EarlyView.
Ca2.5Ag0.3Sm0.2Co4O9 semiconductor materials are synthesized and produced in this study using the sol–gel and cold pressing techniques for thermoelectric generator applications. As template samples are added, the Seebeck coefficient and power factor values rise, peaking at 800 °C for Ca2.5Ag0.3Sm0.2Co4O9 at 274.47 μV K−1 and 0.58 mW mK−2, respectively.
Enes Kilinc, Fatih Uysal, Mucahit Abdullah Sari, Huseyin Kurt, Erdal Celik   +4 more
wiley   +1 more source

DIGITAL ARCHIVE OF UKRVO: THE POSITIONAL ACCURACY OF MINOR PLANETS DETERMINATIONS

Odessa Astronomical Publications, 2013
Scanning and astrometric processing of two 30x30 cm photographic plates with images of minor planets were conducted. The plates were obtained at the double wide-angle astrograph (DWAA, 400/2000) on the program of photographic sky survey and the program ...
V. Golovnya, V. Andruk
doaj   +1 more source

145CCD astrometric positions of comets and minor planets: Observed during March-September 1998 at the Belgrade observatory [PDF]

Serbian Astronomical Journal, 1998
In this paper we present precise astrometric positions of four comets and four minor planets from the MPC critical list. All the observations were carried out with CCD equipped Askania astrograph (13.5/160). The SBIG ST-8 camera was used.
Benishek Vl., Protitch-Benishek V.
doaj   +1 more source

The Survival of Water within Extrasolar Minor Planets

, 2010
We compute that extrasolar minor planets can retain much of their internal H_2O during their host star's red giant evolution. The eventual accretion of a water-rich body or bodies onto a helium white dwarf might supply an observable amount of atmospheric
Canup, Debes, Desharnais, Dufour, Farihi, Farihi, Hughes, Jewitt, Jura, Jura, Jura, Jura, Jura, Keenan, Kilic, Kilic, Klein, Koester, Koester, Lodders, M. Jura, Michalak, Mullally, Reach, Ronov, S. Xu, Sasselov, Schroder, Tremblay, Turcotte, Villaver, von Hippel, Weidemann, Zuckerman   +33 more
core   +1 more source

Near Infrared Surface Properties of the Two Intrinsically Brightest Minor Planets (90377) Sedna and (90482) Orcus [PDF]

, 2005
We present low resolution K band spectra taken at the Gemini 8 meter telescope of (90377) Sedna and (90482) Orcus (provisional designations 2003 VB12 and 2004 DW, respectively), currently the two minor planets with the greatest absolute magnitudes (i.e ...
Brown, Michael E., Geballe, Thomas R., Rabinowitz, David L., Trujillo, Chadwick A.   +3 more
core   +3 more sources

In Situ Formation of a Melt‐Solid Interface Toward Stable Oxygen Reduction in Protonic Ceramic Fuel Cells

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
Protonic ceramic fuel cells offer a promising route to generate power efficiently but face critical challenges in achieving industrially viable activity and stability at their cathodes in CO2‐containing air. This report proposes a new cathode material design strategy to enable the cathode to be both catalytically active and CO2 tolerant through the ...
Desheng Feng, Mengran Li, Vanessa K. Peterson, Rijia Lin, Anita D'Angelo, Olexandra Marenych, Anya Yago, Dominique Appadoo, Tianjiu Zhu, Muhammad Yazid Bin Zulkifli, Shuai Gao, Yuming Wu, Xiaohe Tian, Xiaoyang Du, Zhonghua Zhu   +14 more
wiley   +1 more source

Highly Efficient 3D‐Printed PVDF‐Based Triboelectric Nanogenerators Featuring Polymorphic Perovskite Nanofillers

Advanced Functional Materials, EarlyView.
This study demonstrates the use of a low‐cost 3D printing technique to prepare a large‐area PVDF‐FAPbI3 composite dielectric film for flexible TENG application. The δ→α phase transformation of the FAPbI3 nanofillers has significantly improved the β‐phase content, morphology, and dielectric properties of the PVDF film.
Nurfatin Hafizah Zain Karimy, Hai Li, Hock Beng Lee, Devi Prashad Ojha, Manoj Mayaji Ovhal, Vasanthan Devaraj, Sooman Lim, Jae‐Wook Kang   +7 more
wiley   +1 more source

Searching Minor Planets and Photometric Quality of 60cm Reflector in Gimhae Astronomical Observatory [PDF]

Journal of Astronomy and Space Sciences, 2007
In this paper, we have presented the observational result for the photometric quality of main telescopes in Gimhae Astronomical Observatory. Also we performed the observation of searching new minor planets as competitive work in public observatories. The
Sang Hyun Lee, Yong-Woo Kiang, Kyung-Hoon Lee   +2 more
doaj   +1 more source

Robotic observation pipeline for small bodies in the solar system based on open-source software and commercially available telescope hardware

Frontiers in Astronomy and Space Sciences, 2022
The observation of small bodies in the Space Environment is an ongoing important task in astronomy. While nowadays new objects are mostly detected in larger sky surveys, several follow-up observations are usually needed for each object to improve the ...
Tobias Hoffmann, Tobias Hoffmann, Matti Gehlen, Thorsten Plaggenborg, Gerhard Drolshagen, Theresa Ott, Jutta Kunz, Toni Santana-Ros, Toni Santana-Ros, Marcin Gedek, Rafał Reszelewski, Michał Żołnowski, Björn Poppe   +12 more
doaj   +1 more source