29P/Schwassmann-Wachmann 1, A Centaur in the Gateway to the Jupiter-Family Comets
Jupiter Family Comets (JFCs) are the evolutionary products of trans-Neptunian objects (TNOs) that evolve through the giant planet region as Centaurs and into the inner solar system. Through numerical orbital evolution calculations following a large number of TNO test particles that enter the Centaur population, we have identified a short-lived dynamical Gateway, a temporary low-eccentricity orbit exterior to Jupiter through which the majority of Centaurs that become JFCs pass. We apply an observationally-derived size distribution function to our modeled Centaur population and an empirical fading law to our simulated JFCs to estimate the population in this Gateway region; this produces results that are consistent with the observed number of objects in the Gateway. Currently, the most notable occupant of the Gateway region is Centaur 29P/Schwassmann-Wachmann 1 (SW1), a highly active, regularly outbursting Centaur; its present-day, very low eccentricity orbit was established after a 1975 Jupiter conjunction and will continue until a 2038 Jupiter conjunction doubles its eccentricity and pushes its semi-major axis out to its current aphelion. Within the next 10,000 years, SW1 will likely evolve out of the Gateway region to become the largest JFC. The JFC Gateway region coincides with a heliocentric distance range where the activity of all observed cometary bodies increases significantly, so SW1's activity may be typical of the early evolutionary processing experienced by most JFCs. Thus, the Gateway region, and its most notable occupant SW1, is critical to both the dynamical and physical transition between Centaurs and JFCs.
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Gal Sarid (edit)
Kathryn Volk (add twitter)
Jordan Steckloff (add twitter)
Walter Harris (edit)
Maria Womack (edit)
Laura Woodney (edit)
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08/12/19 06:02PM
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sir_galahead: @StarzanPlanets PSA, because that report is lacking a bit... The study (and author) team includes @kat_volk @steckloff @StarzanPlanets @WaltHarris2 @LWoodney & @ @sir_galahead. AND the actual scientific article reference is: ApJL - https://t.co/myoEOAwRDq Open access - https://t.co/JQhQ6ICA3V
cosmos4u: The paper "29P/Schwassmann-Wachmann 1, A Centaur in the Gateway to the Jupiter-Family Comets" https://t.co/Z9Uk7o8DYk from August keeps spawning press releases, one per month: https://t.co/jL9GjENcLN in September - and now https://t.co/xP26J0eCGW
sir_galahead: @WellsiteGeo Yes, definitely. Actually the open-access arxiv link was the first to come out (before the media story and journal paper). You can find it here: https://t.co/JQhQ6ICA3V
koshime: Jupiter: Newfound Cosmic 'Gateway' Funnels Small, Icy Objects to the Inner Solar System Beginning as small, icy bodies on the outskirts of the solar system, comets turn into spectacular streaks of light when they pass through a "gateway" near... https://t.co/YG0wZIABVb
AsteroidEnergy: Through numerical orbital evolution calculations following a large number of TNO test particles, we have identified a short-lived dynamical Gateway, a temporary low-eccentricity region exterior to Jupiter through which the majority of JFCs pass. https://t.co/g8NcevmORa
AsteroidEnergy: 29P/Schwassmann-Wachmann 1, A Centaur in the Gateway to the Jupiter-Family Comets https://t.co/g8NcevmORa
sir_galahead: @StarzanPlanets @sondy @steckloff @kat_volk Yup. Open-access version is here: https://t.co/JQhQ6IkYFl #WeAreSW1
sir_galahead: That's what we're talking about! Well, Jordan @steckloff talked about it at #epscdps2019 on behalf of the group. Interested in more details about the unique #Centaur to #Comet Gateway? see an open-access version here: https://t.co/JQhQ6IkYFl (ApJL, to be published imminently) https://t.co/eznudoqwnv
megschwamb: Steckloff - 29P/Schwassmann–Wachmann is likely to transition to JFC in next 10 kyr. Paper recently accepted: https://t.co/lAYgX3jHLr #EPSCDPS2019
StarzanPlanets: Read this if you want to know more about why famously outbursting SW1 is super-weird (and super-important): 29P/Schwassmann-Wachmann 1, A Centaur in the Gateway to the Jupiter-Family Comets by @sir_galahead & friends https://t.co/4ghbYtEKBr (in press) https://t.co/Rej8gshM0A
megschwamb: '29P/Schwassmann-Wachmann 1, A Centaur in the Gateway to the Jupiter-Family Comets’ - Sarid (@sir_galahead) et al (submitted) https://t.co/ilkkv52E4O
steckloff: RT @sir_galahead: As promised: https://t.co/JQhQ6ICA3V. "29P/Schwassmann-Wachmann 1, A Centaur in the Gateway to the Jupiter-Family Comets…
teddykareta: RT @sir_galahead: As promised: https://t.co/JQhQ6ICA3V. "29P/Schwassmann-Wachmann 1, A Centaur in the Gateway to the Jupiter-Family Comets…
StarzanPlanets: Our new paper on the famous outbursting 29P/SW1 significantly advances our understanding of Centaurs & JFCs! It also shows that SW1 will start moving out of its current orbit in ~20 years. https://t.co/5r4xD7IWN6 @sir_galahead @kat_volk @steckloff @LWoodney & W.Harris #WeAreSW1 https://t.co/7DAGEhctFX
StarzanPlanets: RT @sir_galahead: As promised: https://t.co/JQhQ6ICA3V. "29P/Schwassmann-Wachmann 1, A Centaur in the Gateway to the Jupiter-Family Comets…
cosmos4u: 29P/Schwassmann-Wachmann 1, A Centaur in the Gateway to the Jupiter-Family Comets: https://t.co/Z9Uk7o8DYk
StarshipBuilder: 29P/Schwassmann-Wachmann 1, A Centaur in the Gateway to the Jupiter-Family Comets https://t.co/p4RxTYAtsr
LWoodney: RT @sir_galahead: As promised: https://t.co/JQhQ6ICA3V. "29P/Schwassmann-Wachmann 1, A Centaur in the Gateway to the Jupiter-Family Comets…
sir_galahead: Hell Yeah! 𝑪𝒉𝒊𝒎𝒆𝒓𝒊𝒄 𝑮𝒂𝒕𝒆𝒘𝒂𝒚 𝑫𝒓𝒂𝒈𝒐𝒏 (see: "29P/Schwassmann-Wachmann 1, A Centaur in the Gateway to the Jupiter-Family Comets", https://t.co/JQhQ6ICA3V). Metal rock band name from 80s or early 90s? Maybe a Dio side project? What do you say @asrivkin @dones? https://t.co/PkBQUBuy7M
kat_volk: RT @sir_galahead: As promised: https://t.co/JQhQ6ICA3V. "29P/Schwassmann-Wachmann 1, A Centaur in the Gateway to the Jupiter-Family Comets…
sir_galahead: As promised: https://t.co/JQhQ6ICA3V. "29P/Schwassmann-Wachmann 1, A Centaur in the Gateway to the Jupiter-Family Comets". With the incomparable: @kat_volk @steckloff @StarzanPlanets @LWoodney & Walt Harris Title says it all, but do read & comment. More to come. #WeAreSW1 https://t.co/meE5QQez7W
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