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Rectified diameters and albedo estimates of 1517 main belt asteroid selected from the IRAS and MSX asteroid photometry catalogues are derived from updated infrared thermal models, the Standard Thermal Model (STM) and the Near Earth Asteroid…

Earth and Planetary Astrophysics · Physics 2015-05-19 Erin Lee Ryan , Charles E. Woodward

We report upper limits on the masses of black holes that can be present in the centers of 16 nearby galaxy bulges. These limits for our statistically complete sample were derived from the modeling of the central emission-line widths ([N II]…

This paper presents synthetic observations of long-lived, coorbiting asteroids of Mercury, Venus, the Earth and Mars. Our sample is constructed by taking the limiting semimajor axes, differential longitudes and inclinations for long-lived…

Astrophysics · Physics 2009-10-31 N. W. Evans , S. A. Tabachnik

Asteroid (7) Iris is an ideal target for disk-resolved imaging owing to its brightness (V$\sim$7-8) and large angular size of 0.33 arcsec during its apparitions. Iris is believed to belong to the category of large unfragmented asteroids…

Asteroid (175706) 1996 FG3 is a binary asteroid and the baseline target for the proposed MarcoPolo-R sample-return mission. We present thermal IR photometry obtained with the ESO VLT+VISIR together with optical photometry obtained with the…

We present observations and dust tail models of activated asteroid P/2015 X6 from deep imaging data acquired at the 10.4m Gran Telescopio Canarias (GTC) from mid-December 2015 to late January 2016. The results of the modeling indicate that…

Earth and Planetary Astrophysics · Physics 2016-08-03 F. Moreno , J. Licandro , A. Cabrera-Lavers , F. J. Pozuelos

Digital tracking enables telescopes to detect asteroids several times fainter than conventional techniques. We describe our optimized methodology to acquire, process, and interpret digital tracking observations, and we apply it to probe the…

Earth and Planetary Astrophysics · Physics 2020-01-08 A. N. Heinze , Joseph Trollo , Stanimir Metchev

We calculate the maximum mass of neutron stars for three different equations of state (EOS) based on generalized Skyrme functionals that are simultaneously fitted to essentially all the 2003 nuclear mass data (the rms deviation is 0.58 MeV…

Nuclear Theory · Physics 2012-12-05 N. Chamel , A. F. Fantina , J. M. Pearson , S. Goriely

We have analyzed in this work the updated sample of neutron star masses derived from the study of a variety of 96 binary systems containing at least one neutron star using Bayesian methods. After updating the multimodality of the…

High Energy Astrophysical Phenomena · Physics 2021-07-20 L. S. Rocha , R. R. A. Bachega , J. E. Horvath , P. H. R. S. Moraes

Knowledge of the interior density distribution of an asteroid can reveal its composition and constrain its evolutionary history. However, most asteroid observational techniques are not sensitive to interior properties. We investigate the…

Earth and Planetary Astrophysics · Physics 2022-10-20 Jack T Dinsmore , Julien de Wit

The observed radial and transverse velocities of individual stars in M15 are implemented as inputs to a fully non-parametric code (CHASSIS) in order to estimate the equilibrium stellar distribution function and the three-dimensional mass…

Astrophysics · Physics 2008-11-26 Dalia Chakrabarty

We studied 93 asteroid pairs. We estimated times elapsed since separation of pair members that are between 7*10^3 and a few 10^6 yr. We derived the rotation periods for all the primaries and a sample of secondaries. We derived the absolute…

Radar and spacecraft observations show the permanently shadowed regions around Mercury's North Pole to contain water ice and complex organic material. One possible source of this material are impacts by interplanetary dust particles (IDPs),…

Earth and Planetary Astrophysics · Physics 2022-04-27 Kateryna Frantseva , David Nesvorný , Michael Mueller , Floris F. S. van der Tak , Inge Loes ten Kate , Petr Pokorný

We use a new redshift survey complete to m_R=15.4 within 4.25 deg from the center of the Coma cluster to measure the mass profile of the cluster to r=5.5 Mpc/h. We extend the profile to r=10 Mpc/h with a further sample complete to m_R=15.4…

Astrophysics · Physics 2009-10-31 M. J. Geller , Antonaldo Diaferio , M. J. Kurtz

We determine an empirical dense matter equation of state from a heterogeneous dataset of six neutron stars: three type I X-ray bursters with photospheric radius expansion, studied by Ozel et al., and three transient low-mass X-ray binaries.…

High Energy Astrophysical Phenomena · Physics 2015-05-18 Andrew W. Steiner , James M. Lattimer , Edward F. Brown

We have identified and quantified semi-major axis drifts in Near-Earth Asteroids (NEAs) by performing orbital fits to optical and radar astrometry of all numbered NEAs. We focus on a subset of 54 NEAs that exhibit some of the most reliable…

Earth and Planetary Astrophysics · Physics 2015-06-04 C. R. Nugent , J. L. Margot , S. R. Chesley , D. Vokrouhlický

We provide a taxonomic and compositional characterization of Multiple Asteroid Systems (MASs) located in the main belt (MB) using visible and near-infrared (0.45-2.5 um) spectral data of 42 MB MASs. The mineralogical analysis is applied to…

Earth and Planetary Astrophysics · Physics 2015-06-22 Sean S. Lindsay , Franck Marchis , Joshua P. Emery , J. Emilio Enriquez , Marcelo Assafin

Mercury's core mass fraction (CMF) is ~0.7, more than double that of the other rocky planets in the solar system, which have CMFs of ~0.3. The origin of Mercury's large, iron-rich core remains unknown. Adding to this mystery, an elusive…

Earth and Planetary Astrophysics · Physics 2026-02-17 Haniyeh Tajer , Ji Wang , Anna C. Childs , Noah Ferich , Tiger Lu , Hanno Rein

Gaps imaged in protoplanetary discs are suspected to be opened by planets. We compute the present-day mass accretion rates $\dot{M}_{\rm p}$ of seven hypothesized gap-embedded planets, plus the two confirmed planets in the PDS 70 disc. The…

Earth and Planetary Astrophysics · Physics 2021-12-15 Nick Choksi , Eugene Chiang
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