Rosetta scientific results Options

[Jackbauer]

Three papers on arXiv :

Gravitational slopes, geomorphology, and material strengths of the nucleus of comet 67P/Churyumov-Gerasimenko from OSIRIS observations
http://arxiv.org/abs/1509.02707

Temporal morphological changes in the Imhotep region of comet 67P/Churyumov-Gerasimenko
http://arxiv.org/abs/1509.02794

(nice OSIRIS pictures)

http://arxiv.org/abs/1509.03179
Rapid temperature changes and the early activity on comet 67P/Churyumov-Gerasimenko

[Bill Harris]

(nice OSIRIS pictures)

Has any of the OSIRIS made it to a public archive yet?

Rapid temperature changes and the early activity...

Interesting idea, but I was reflecting the other day how the near- and post-perihelion activity has shifted from the neck region to the plains on the two lobes.

--Bill




EDIT
And a new paper out on “Temporal morphological changes in the Imhotep region of comet 67P/Churyumov-Gerasimenko” to be published in Astronomy & Astrophysics:

http://dx.doi.org/10.1051/0004-6361/201527020

authored by Olivier Groussin, et al. http://blogs.esa.int/rosetta/2015/09/18/co...-rosettas-eyes/

And an announcement that Rosetta is to be taking station at 1500Km from the nucleus in late September
http://blogs.esa.int/rosetta/2015/09/18/ro...-coma-at-large/ . Mebbe they are expecting a big Kerblooie? Or just simply want the opportunity to get a series of wide coma images?

-b

[Paolo]

new blog post and OSIRIS images: Comet surface changes before Rosetta's eyes
be sure to check also the free access A&A paper it refers to: Temporal morphological changes in the Imhotep region of comet 67P/Churyumov-Gerasimenko

[stone]

After hearing two good talks about the Rosina Zoo of organic molecule at the Rosetta Science Meeting I wait for the publication of the newly found molecules. Nice compounds which will create a lot of dicussions on how they are formed and how they can survive on a comet.

[Bill Harris]

Organic molecules on comets: Philae's first results from Churi prove surprising

Date: July 30, 2015
Source: CNRS

Summary:
Organic molecules never previously observed in comets, a relatively varied structure on the surface but a fairly homogeneous interior, organic compounds forming agglomerates rather than being dispersed in the ice: these are just some of first results provided by Philae on the surface of comet Churi. These in situ findings, which contain a wealth of completely new information, reveal several differences in comparison with previous observations of comets and current models...

http://www.sciencedaily.com/releases/2015/...50730172518.htm

Is it from this work or from later data? There will no doubt be fascinating geochemistry based on temperatures and pressures _over the time period involved_ that would be impossible to duplicate in the lab.

--Bill

[stone]

http://www.sciencedaily.com/releases/2015/...50730172518.htm

Is it from this work or from later data? There will no doubt be fascinating geochemistry based on temperatures and pressures _over the time period involved_ that would be impossible to duplicate in the lab.

--Bill

Sorry, but on this paper I am one of the coauthors, so this is not "new" for me. But the Rosina material is another teams data and so I have to wait for the meetings to get an update. The Zoo is large and the amount of compounds which can be still in the data and not yet identified might be large. I liked the groups made up by Kathrin Altwegg. The large ones and the small and flying ones an so on. I hope for a nice paper from ROSINA soon.

[Bill Harris]

I'll (we'll) be looking forward to the new paper then. There is so much new ground being covered in this mission that we (y'all) will be working with it for years to come. And it all ties in with accretionary processes and the primordial solar nebula, which is quite mind-boggling.

--Bill

[Paolo]

in this week's Nature: The diurnal cycle of water ice on comet 67P/Churyumov–Gerasimenko
and ESA's release http://www.esa.int/Our_Activities/Space_Sc...water-ice_cycle

[Jackbauer]

http://blogs.esa.int/rosetta/2015/09/25/ro...t-comet-67pc-g/

ROSINA detects argon at Comet 67P
The noble gas argon has been detected in the coma of Comet 67P/Churyumov-Gerasimenko for the first time, thanks to the ROSINA mass spectrometer on-board Rosetta. Its detection is helping scientists to understand the processes at work during the comet’s formation, and adds to the debate about the role of comets in delivering various ‘ingredients’ to Earth

[Bill Harris]

On the ESA site http://blogs.esa.int/rosetta/ --

Delving into the accretionary history of 67P--
blogs.esa.int/rosetta/2015/09/28/how-rosettas-comet-got-its-shape/


Rosetta presentations at EPSC--
http://blogs.esa.int/rosetta/2015/09/28/ro...riefing-online/

Lots of good science.

--Bill




And Another paper announced:

“The "Dark Side" of 67P/Churyumov-Gerasimenko in Aug-Oct 2014 – MIRO/Rosetta continuum observations of polar night in the Southern regions,” by M. Choukroun et al, accepted for publication in Astronomy and Astrophysics.

http://blogs.esa.int/rosetta/2015/10/01/ro...ets-south-pole/

--b



and a Dust Jet anaglyph:

http://blogs.esa.int/rosetta/2015/10/09/comet-jet-in-3d/

a how-to-deconstruct-an-anaglyph poster:
http://univ.smugmug.com/Sample-Gallery/i-9...construct-L.png

--b


Wisdom from Dr. Matteo Massironi:

http://blogs.esa.int/rosetta/2015/10/12/in...-got-its-shape/

--b

[algorithm]

Sitting by the fireside single malt in one hand, gently stroking long beard with the other.

Molecular oxygen in a comet eh? ..mmmm!?



https://t.co/Mpqe21Dt57

[Bill Harris]

Molecular Oxygen, and primordial, too. That Solar Nebula was a happening place, no?
http://blogs.esa.int/rosetta/2015/10/28/fi...gen-at-a-comet/

Kicking back next to the Quartz heater with a cup o'hot cocoa with the Laptop...

--Bill



A fall of comet dust and a field of boulders
http://blogs.esa.int/rosetta/2015/11/09/a-...ld-of-boulders/


New papers of note:

"Redistribution of particles across the nucleus of comet 67P/Churyumov-Gerasimenko"
http://www.aanda.org/articles/aa/abs/2015/...aa26049-15.html

"Size-frequency distribution of boulders ≥7 m on comet 67P/Churyumov-Gerasimenko"
http://www.aanda.org/articles/aa/abs/2015/...aa25975-15.html

[Paolo]

an entire issue of Astronomy & Astrophysics dedicated to Rosetta pre-perihelion results!
http://www.aanda.org/articles/aa/abs/2015/...s/contents.html
many articles are in open access, others may require a (free) subscription

[Herobrine]

Am I missing something, or are all but one of the start times wrong for Figure 3 in Table A.1 of Morphology and dynamics of the jets of comet 67P/Churyumov-Gerasimenko: Early-phase development? I don't read as many papers as a lot of you probably do, so I'm wondering if I'm somehow misinterpreting the table.

[Bill Harris]

New paper and ESA Blog post:

The ups and downs of a comet’s surface
http://blogs.esa.int/rosetta/2015/11/11/th...comets-surface/

"Geomorphology and Spectrophotometry of Philae's Landing Site on Comet 67P Churyumov-Gerasimenko"
http://www.aanda.org/articles/aa/abs/2015/...aa25983-15.html



And a year's perspective: this was an initial geomorph assessment that I presented in ESA Blog Posts last year:

Geomorphology Gallery:
http://univ.smugmug.com/Rosetta-Philae-Mis...-Geomorphology/

The first image is " The Geomorphology of the Agilkia landing site"
http://univ.smugmug.com/Rosetta-Philae-Mis...semap_res-L.png


The following features will be discussed in separate image poster-presentations:

Landing site
"Effusive" deposits
Residual scree
Plumed deposits
Pitted terrain
Deflated Terrain

Agilkia Geomorphology Map
http://univ.smugmug.com/Rosetta-Philae-Mis...ap--annot-L.png

Landing Site Map
http://univ.smugmug.com/Rosetta-Philae-Mis...ding_site-L.png

Effusive Deposits
http://univ.smugmug.com/Rosetta-Philae-Mis.../effusive-L.png

Scree Deposits
http://univ.smugmug.com/Rosetta-Philae-Mis...0/L/scree-L.png

Plumed Deposits
http://univ.smugmug.com/Rosetta-Philae-Mis.../L/plumed-L.png

Pitted Terrain
http://univ.smugmug.com/Rosetta-Philae-Mis.../L/pitted-L.png

Deflated Terrain
http://univ.smugmug.com/Rosetta-Philae-Mis...L/deflate-L.png


--Bill