Spectrophotometry of (32) Pomona, (145) Adeona, (704) Interamnia, (779) Nina, (330825) 2008 XE3, and 2012 QG42 and laboratory study of possible analog samples

Busarev, V. V.; Barabanov, S. I.; Rusakov, V. S.; Puzin, V. B.; Kravtsov, V. V.

doi:10.1016/j.icarus.2015.08.001

Cited by 22 publications

(4 citation statements)

References 49 publications

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“…This speculation can be used to determine the best window of observing the activity of this asteroid. Busarev et al (2015Busarev et al ( , 2018b noted the weak activity of Interamnia at perihelion distances in both 2012 and 2017 with a mean anomaly of 14°and 24°, respectively. However, to further confirm the existence of activity, more follow-up observations should be carried out in the future.…”

Section: Discussionmentioning

confidence: 98%

“…Nevertheless, weak gas activity can still happen by the sublimation of buried ice or a few exposed ice patches. Busarev et al (2015Busarev et al ( , 2018a claimed subtle coma activity near perihelion of Interamnia from absorption bands centered at 0.38, 0.44, and 0.67-0.71 μm that are registered in the reflectance spectra. Thus, the following questions arise: how much water ice would Interamnia contain, and what are the governing factors that affect the possible existence of water ice sublimation activity?…”

Section: Introductionmentioning

confidence: 99%

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Mid-IR Observations of IRAS, AKARI, WISE/NEOWISE, and Subaru for Large Icy Asteroid (704) Interamnia: A New Perspective of Regolith Properties and Water Ice Fraction

Jiang¹,

Liangliang

et al. 2023

ApJ

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(704) Interamnia is one of the largest asteroids located in the outer main-belt region, which may contain a large amount of water ice underneath its surface. We observe this asteroid using 8.2 m Subaru telescope at mid-infrared wave bands and utilize a thermophysical model for realistic surface layers to analyze mid-infrared data from Subaru along with those of IRAS, AKARI, and Wide-field Infrared Survey Explorer (WISE)/NEOWISE. We optimize the method to convert the WISE magnitude to thermal infrared flux with temperature-dependent color corrections, which can provide significant references for main-belt asteroids at a large heliocentric distance with low surface temperature. We derive best-fitting thermal parameters of Interamnia—a mean regolith grain size of 190 − 180 + 460 μm, with a roughness of 0.30 − 0.17 + 0.35 and rms slope of 27 − 9 + 13 deg, thereby producing thermal inertia ranging from 9 to 92 Jm−2 s−1/2 K−1 due to seasonal temperature variation. The geometric albedo and effective diameter are evaluated to be 0.0472 − 0.0031 + 0.0033 and 339 − 11 + 12 km , respectively, being indicative of a bulk density of 1.86 ± 0.63 g cm−3. The low thermal inertia is consistent with typical B/C-type asteroids with D ≥ 100 km. The tiny regolith grain size suggests the presence of a fine regolith on the surface of Interamnia. Moreover, the seasonal and diurnal temperature distribution indicates that thermal features between the southern and northern hemispheres appear to be very different. Finally, we present an estimation of volume fraction of water ice of 9%–66% from the published grain density and porosity of carbonaceous chondrites.

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Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Mid-IR Observations of IRAS, AKARI, WISE/NEOWISE, and Subaru for Large Icy Asteroid (704) Interamnia: A New Perspective of Regolith Properties and Water Ice Fraction

Jiang¹,

Liangliang

et al. 2023

ApJ

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“…The largest member of the family, (145) Adeona, has been spectroscopically classified as a Cor Ch-type asteroid (Neese 2010), and has been reported to have p V = 0.061±0.010, r e = 63.9±0.2 km, and ρ = 1.18±0.34 kg m −3 (Mainzer et al 2016;Carry 2012). Adeona has been spectroscopically characterized by Busarev et al (2015) who also found spectroscopic features indicative of hydrated silicates and hydrated oxides. An unexplained sharp increase in reflectivity between 0.4 µm and 0.7 µm was also noted, and interpreted as possibly being indicative of a cloud of sublimed or frozen ice particles, but this interpretation has yet to be confirmed.…”

Section: The Adeona Familymentioning

confidence: 99%

Asteroid Family Associations of Active Asteroids

Hsieh

Novaković

Kim

et al. 2018

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We report on the results of a systematic search for associated asteroid families for all active asteroids known to date. We find that 10 out of 12 main-belt comets (MBCs) and 5 out of 7 disrupted asteroids are linked with known or candidate families, rates that have ∼0.1% and ∼6% probabilities, respectively, of occurring by chance, given an overall family association rate of 37% for asteroids in the inner solar system. We find previously unidentified family associations between 238P/Read and the candidate Gorchakov family, 311P/PANSTARRS and the candidate Behrens family, 324P/La Sagra and the Alauda family, 354P/LINEAR and the Baptistina family, P/2013 R3-B (Catalina-PANSTARRS) and the Mandragora family, P/2015 X6 (PANSTARRS) and the Aeolia family, P/2016 G1 (PANSTARRS) and the Adeona family, and P/2016 J1-A/B (PANSTARRS) and the Theobalda family. All MBCs with family associations belong to families that contain asteroids with primitive taxonomic classifications and low average reported albedos (p V 0.10), while disrupted asteroids with family associations belong to families that contain asteroids that span wider ranges of taxonomic types and average reported albedos (0.06 < p V < 0.25). These findings are consistent with MBC activity being closely correlated to composition (i.e., whether an object is likely to contain ice), while disrupted asteroid activity is not as sensitive to composition. Given our results, we describe a sequence of processes by which the formation of young asteroid families could lead to the production of present-day MBCs.

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“…Based on the data of reflectance spectroscopy, we have discovered simultaneous sublimation activity on four main-belt primitive asteroids 145 Adeone, 704 Interamnia, 779 Nina, and 1474 Beira being simultaneously near their perihelion distances in September 2012 (Busarev et al 2015;Busarev et al 2018a). As follows from Mie theory and numeric modeling (Hansen & Travis 1974), observed maxima in reflectance spectra of the asteroids in the near-UV or visible spectral ranges point to dispersion of light in a subtle regular coma of frozen H 2 O micron-sized particles around each of the asteroids.…”

mentioning

confidence: 99%

Discovering periodic sublimation on main-belt primitive asteroids near perihelion and its possible astrobiological significance

Busarev

2018

Proc. IAU

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Discovered periodic sublimation activity on four main-belt primitive asteroids led us to conclusions about possible origin of those and similar bodies (or their parent bodies) near or beyond the snow line in the early Solar System making incorporated in them a considerable water ice stock. Water differentiation of the bodies owing to 26A1 decay and their internal thermal evolution might have created conditions for water soluble organics and prebiotic compounds formation. Subsequent longtime periodic changing temperature and other physico-chemical parameters (due to spinning and moving around the Sun) in the near-surface layers of primitive asteroids have led probably to formation of more complex organic compounds of astrobiological significance.

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Spectrophotometry of (32) Pomona, (145) Adeona, (704) Interamnia, (779) Nina, (330825) 2008 XE3, and 2012 QG42 and laboratory study of possible analog samples

Cited by 22 publications

References 49 publications

Mid-IR Observations of IRAS, AKARI, WISE/NEOWISE, and Subaru for Large Icy Asteroid (704) Interamnia: A New Perspective of Regolith Properties and Water Ice Fraction

Mid-IR Observations of IRAS, AKARI, WISE/NEOWISE, and Subaru for Large Icy Asteroid (704) Interamnia: A New Perspective of Regolith Properties and Water Ice Fraction

Asteroid Family Associations of Active Asteroids

Discovering periodic sublimation on main-belt primitive asteroids near perihelion and its possible astrobiological significance

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