What’s Inside Ceres? New Findings from Gravity Data

first_img Get our daily Pasadena newspaper in your email box. Free.Get all the latest Pasadena news, more than 10 fresh stories daily, 7 days a week at 7 a.m. Name (required)  Mail (required) (not be published)  Website  Pasadena’s ‘626 Day’ Aims to Celebrate City, Boost Local Economy This artist’s concept shows a diagram of how the inside of Ceres could be structured, based on data about the dwarf planet’s gravity field from NASA’s Dawn mission. Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDAIn the tens of thousands of photos returned by NASA’s Dawn spacecraft, the interior of Ceres isn’t visible. But scientists have powerful data to study Ceres’ inner structure: Dawn’s own motion.Since gravity dominates Dawn’s orbit at Ceres, scientists can measure variations in Ceres’ gravity by tracking subtle changes in the motion of the spacecraft. Using data from Dawn, scientists have mapped the variations in Ceres’ gravity for the first time in a new study in the journal Nature, which provides clues to the dwarf planet’s internal structure.“The new data suggest that Ceres has a weak interior, and that water and other light materials partially separated from rock during a heating phase early in its history,” said Ryan Park, the study’s lead author and the supervisor of the solar system dynamics group at NASA’s Jet Propulsion Laboratory, Pasadena, California.Ceres’ gravity field is measured by monitoring radio signals sent to Dawn, and then received back on Earth, by NASA’s Deep Space Network. This network is a collection of large antennas at three locations around the globe that communicate with interplanetary spacecraft. Using these signals, scientists can measure the spacecraft’s speed to a precision of 0.004 inches (0.1 millimeters) per second, and then calculate the details of the gravity field.Ceres has a special property called “hydrostatic equilibrium,” which was confirmed in this study. This means that Ceres’ interior is weak enough that its shape is governed by how it rotates. Scientists reached this conclusion by comparing Ceres’ gravity field to its shape. Ceres’ hydrostatic equilibrium is one reason why astronomers classified the body as a dwarf planet in 2006.The data indicate that Ceres is “differentiated,” which means that it has compositionally distinct layers at different depths, with the densest layer at the core. Scientists also have found that, as they suspected, Ceres is much less dense than Earth, the moon, giant asteroid Vesta (Dawn’s previous target) and other rocky bodies in our solar system. Additionally, Ceres has long been suspected to contain low-density materials such as water ice, which the study shows separated from the rocky material and rose to the outer layer along with other light materials.“We have found that the divisions between different layers are less pronounced inside Ceres than the moon and other planets in our solar system,” Park said. “Earth, with its metallic crust, semi-fluid mantle and outer crust, has a more clearly defined structure than Ceres,” Park said.Scientists also found that high-elevation areas on Ceres displace mass in the interior. This is analogous to how a boat floats on water: the amount of displaced water depends on the mass of the boat. Similarly, scientists conclude that Ceres’ weak mantle can be pushed aside by the mass of mountains and other high topography in the outermost layer as though the high-elevation areas “float” on the material below. This phenomenon has been observed on other planets, including Earth, but this study is the first to confirm it at Ceres.The internal density structure, based on the new gravity data, teaches scientists about what internal processes could have occurred during the early history of Ceres. By combining this new information with previous data from Dawn about Ceres’ surface composition, they can reconstruct that history: Water must have been mobile in the ancient subsurface, but the interior did not heat up to the temperatures at which silicates melt and a metallic core forms.“We know from previous Dawn studies that there must have been interactions between water and rock inside Ceres,” said Carol Raymond, a co-author and Dawn’s deputy principal investigator based at JPL. “That, combined with the new density structure, tells us that Ceres experienced a complex thermal history.”Dawn’s mission is managed by JPL for NASA’s Science Mission Directorate in Washington D.C. Dawn is a project of the directorate’s Discovery Program, managed by NASA’s Marshall Space Flight Center in Huntsville, Alabama. UCLA is responsible for overall Dawn mission science. Orbital ATK Inc., in Dulles, Virginia, designed and built the spacecraft. The German Aerospace Center, Max Planck Institute for Solar System Research, Italian Space Agency and Italian National Astrophysical Institute are international partners on the mission team. For a complete list of mission participants, visit http://dawn.jpl.nasa.gov/mission.More information about Dawn is available at the following sites: http://dawn.jpl.nasa.gov http://www.nasa.gov/dawn More Cool Stuff First Heatwave Expected Next Week Your email address will not be published. Required fields are marked * Subscribe EVENTS & ENTERTAINMENT | FOOD & DRINK | THE ARTS | REAL ESTATE | HOME & GARDEN | WELLNESS | SOCIAL SCENE | GETAWAYS | PARENTS & KIDS Community News Top of the News center_img Science and Technology What’s Inside Ceres? New Findings from Gravity Data By ELIZABETH LANDAU Published on Wednesday, August 3, 2016 | 2:06 pm Pasadena Will Allow Vaccinated People to Go Without Masks in Most Settings Starting on Tuesday Community News 0 commentsShareShareTweetSharePin it Business News HerbeautyThe Most Heartwarming Moments Between Father And DaughterHerbeautyHerbeautyHerbeauty6 Strong Female TV Characters Who Deserve To Have A SpinoffHerbeautyHerbeautyHerbeauty6 Strong Female TV Characters Who Deserve To Have A SpinoffHerbeautyHerbeautyHerbeautyWhat’s Your Zodiac Flower Sign?HerbeautyHerbeautyHerbeauty10 Questions To Start Conversation Way Better Than ‘How U Doing?’HerbeautyHerbeautyHerbeauty9 Of The Best Family Friendly Dog BreedsHerbeautyHerbeauty Home of the Week: Unique Pasadena Home Located on Madeline Drive, Pasadena Make a comment faithfernandez More » ShareTweetShare on Google+Pin on PinterestSend with WhatsApp,Virtual Schools PasadenaHomes Solve Community/Gov/Pub SafetyCitizen Service CenterPASADENA EVENTS & ACTIVITIES CALENDARClick here for Movie Showtimeslast_img read more

Shannon RFC and Limerick mourn passing of Pat O’Connor

first_imgLinkedin Email NewsLocal NewsShannon RFC and Limerick mourn passing of Pat O’ConnorBy admin – January 5, 2010 598 Advertisement Facebook WhatsAppcenter_img It’s with great regret and the deepest of sadness that members and friends of Shannon RFC learned of the passing of our vice President, Pat O’Connor. At 73 years of age, Pat succumbed to his health battle at 11pm on Monday 4th last in Milford Hospice and leaves behind a legacy of goodwill, dedication and unyielding commitment to Shannon RFC. Pat’s death will leave a massive void in the lives of those that knew him, and Shannon RFC may never see a man of his ilk, who worked tirelessly for the betterment of his beloved club.Sign up for the weekly Limerick Post newsletter Sign Up A gentler more affable man you couldn’t meet, Pat was a man of quite purpose and his gentle nature belied his ruthless agenda when it came to the continuing success of Shannon.Pat O’Connor was a central figure to the success of Shannon in the AIB league over the years and whilst the players took the accolades, his role was every bit as important.As Chairman of Finance, Assistant Treasurer, Hon. Treasurer, Club Chairman and then Vice President, Pat led the club through some glorious times and it will be a source of great regret by Shannon’s members that his health prevented him from attaining the Presidency of the club.Pat has amassed a great many friends throughout the country and his absence at the customary pre match lunches with opposition teams will be noted with deep regret.It might come as a surprise to some within the club that he did actually run a business given his time dedicated to the club and probably the only other aspect of his life, bar his family, that vied for his attention as much as the club was his cattle.Memories of Pat O’Connor are thankfully, vast and happy. Everyone was referred to as “boss” and everyone treated with the utmost respect whether the issue was of major significance or a simple mundane matter. As long as the problem was about Shannon, it would be sorted.His spirit will remain and the drive and enthusiasm he had for Shannon RFC will live on in everything the club achieves in the future.To his wife Kate, daughters Jane and Trish, his son Noel and brother Noel and his extended family, the thoughts and sympathies of everyone in Shannon RFC and beyond  are with ye.Pat, you will be missed by all, May you rest in peace. Print Twitter Previous articleGive it a TriNext articleMunster v Scarlets pitch update adminlast_img read more

Directions awaited from DPP

first_imgAdvertisement Email NewsLocal NewsDirections awaited from DPPBy admin – January 24, 2012 616 THE DIRECTIONS of the DPP are awaited on a man charged with the alleged possession of a .22 Anschutz rifle, one round on ammunition and €25,000 worth of ecstasy tablets.21-year-old Gary Curtin, with an address at Railway House, Old Cork Road, is accused of the offences contrary to section 27A of the Firearms act 1965 and sections 15 and 3 of the misuse of drugs act at Spitland, Old Cork Road, on dates between June 10 and 14, 2011.Sign up for the weekly Limerick Post newsletter Sign Up Facebook WhatsApp Previous articleCertainty sought on future of Shannon AirportNext articleLimerick foodies called to the @foodieforum admin Linkedin Twitter Print The matter was adjourned until February 29.last_img read more

Eliminating ‘Redundancy and Inconsistency’ in Nonbank Regulation

first_img Related Articles Subscribe Demand Propels Home Prices Upward 2 days ago The Best Markets For Residential Property Investors 2 days ago Eliminating ‘Redundancy and Inconsistency’ in Nonbank Regulation Phil Hall is a former United Nations-based reporter for Fairchild Broadcast News, the author of nine books, the host of the award-winning SoundCloud podcast “The Online Movie Show,” co-host of the award-winning WAPJ-FM talk show “Nutmeg Chatter” and a writer with credits in The New York Times, New York Daily News, Hartford Courant, Wired, The Hill’s Congress Blog and Profit Confidential. His real estate finance writing has been published in the ABA Banking Journal, Secondary Marketing Executive, Servicing Management, MortgageOrb, Progress in Lending, National Mortgage Professional, Mortgage Professional America, Canadian Mortgage Professional, Mortgage Professional News, Mortgage Broker News and HousingWire. in Daily Dose, Featured, Market Studies, News Data Provider Black Knight to Acquire Top of Mind 2 days ago Share Save Servicers Navigate the Post-Pandemic World 2 days ago Sign up for DS News Daily  Print This Post Servicers Navigate the Post-Pandemic World 2 days ago Previous: Forbearance Plan Removals Could Increase in January Next: Brandon McGee Joins BSI Financial as VP Data Provider Black Knight to Acquire Top of Mind 2 days ago 2021-01-04 Christina Hughes Babb About Author: Phil Hall The Week Ahead: Nearing the Forbearance Exit 2 days ago Demand Propels Home Prices Upward 2 days ago A new report published by the Urban Institute’s Housing Finance Policy Center calling for a re-examination of how federal regulators oversee nonbank mortgage servicers.The report, titled “Improving the Safety and Soundness of Nonbank Mortgage Servicers Will Require More Than Prudential Regulation,” challenges recommendations made in October by the Conference of State Bank Supervisors (CSBS), which proposed new prudential regulatory standards. The CSBS report advocated for a stronger role by state regulators over this sector.The Urban Institute report questioned the CSBS’s emphasis on the states by questioning if it would increase the redundancies and inconsistencies in the regulatory environment.“Nonbank regulation should be structured in a manner that not only keeps the system safe and sound but maximizes efficiency by eliminating redundancy and consistency,” stated the report, authored by Housing Finance Policy Center VP Laurie Goodman and Senior Research Associate Karan Kaul. “A fragmented regulatory regime that includes the federal government, states, Fannie Mae, Freddie Mac, and Ginnie Mae is not conducive the achieving those outcomes. Additionally, given that the CSBS’s proposed capital and liquidity requirements are modeled after Federal Housing Finance Agency (FHFA) requirements, it is unclear how applying the same standards at the state level would improve safety materially.”The report pointed out that Fannie Mae, Freddie Mac, and Ginnie Mae already have a “pseudo-regulatory” infrastructure that oversees nonbank servicers, while the servicers are mandated to provide data to the agencies on all levels of loan activity along with quarterly reports detailing their financial health.“This close engagement is much more effective than simply setting minimum capital and liquidity standards because it allows the agencies to identify problems early and take corrective action,” the report said.The report also raised the question of whether the CSBS proposal offered a solution that was not attached to a pressing problem, remarking that nonbanks sell almost all of their production to the federal agencies and, as a result, do not burden themselves with credit risk.“The real risk they face is the timing delay between the payment of delinquent principal, interest, taxes, and insurance to relevant parties and the reimbursement of those advances by the GSEs and the FHA,” the report continued. “The GSEs reimburse after loans become four months delinquent, but the FHA does not do so until the loan is resolved through a short sale or foreclosure, a process that can take years. If there is a large increase in delinquencies that forces nonbanks to temporarily advance more cash than they had anticipated, the result can be a liquidity crunch.”The report proposed that the “most effective way to prevent future liquidity crises in the nonbank servicer sector” was to expand Federal Home Loan Bank (FHLB) membership to nonbanks, thus giving them access to emergency federal assistance that is available to bank depositories.“Paired with prudential regulation at the federal level, FHLB membership would give nonbanks much-needed access to stable federal funds through the cycle and significantly mitigate the perpetual liquidity risks the sector faces,” the report said. Home / Daily Dose / Eliminating ‘Redundancy and Inconsistency’ in Nonbank Regulation January 4, 2021 946 Views Governmental Measures Target Expanded Access to Affordable Housing 2 days ago The Best Markets For Residential Property Investors 2 days ago Governmental Measures Target Expanded Access to Affordable Housing 2 days agolast_img read more