[BOINC] [物理类] Einstein@Home

昂宿星团人

THREE NEW EINSTEIN@home PAPERS
Submitted on 26 Jul 2017 7:43:21 UTC

Three papers full of new Einstein@Home science are available now on the arXiv preprint server.First low-frequency Einstein@Home all-sky search for continuous gravitational waves in Advanced LIGO data describes our first results from a search in data from the first observation run “O1” of the Advanced LIGO instruments. We did not detect any signals, but our upper limits are the most stringent achieved to date.

Our result paper is accompanied by two papers describing innovative methods used in the search.  An adaptive clustering procedure for continuous gravitational wave searches and A new veto for continuous gravitational wave searches are available on the arXiv, too.

All three papers have been submitted to Physical Review D for peer review and publication. We will keep you posted on the progress.

On behalf of M. Alessandra Papa for the Einstein@Home team

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2017.07.26 Einstein@home 的三篇新论文

First low-frequency Einstein@Home all-sky search for continuous gravitational waves in Advanced LIGO data 分析了我们从Advanced LIGO的第一次观测（O1）数据中得到的第一个结果。在这堆数据里我们没发现任何信号，不过我们给出了最严格的（引力波背景）上限。

与这篇文章一同发表的还有两篇论文，主要讨论的是本次研究中使用的一些新方法。

三篇文章已送审Physical Review D 。我们会随时跟进并公布发表进度。

昂宿星团人

归档：http://www.equn.com/forum/forum. ... mp;extra=#pid583949

Einstein@Home: Project downtime on Tue Jan 23rd

Hi everyone,

We are going to shut down the project next Tuesday, Jan 23rd at around 10 AM CET for an upgrade of our database backend systems to make them ready for the years to come. We're going to upgrade hardware parts, operating systems as well the databases themselves, which is why we need to shut down the entire project, including the BOINC backend and this very website.

Generally you don't have to do anything at your end.

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Einstein@Home: 项目将于1月23日暂时关闭
考虑到项目今后的发展，我们将于北京时间1月23日下午5点左右进行一次大升级，要升级的内容包括：硬件、操作系统以及数据库本身，因此升级的时候我们需要关闭整个项目，包括BOINC后端和项目网站。
不过各位算友什么都不用干，坐等升级完毕项目重新上线即可~

freestman

Submitted on 28 Feb 2018 19:13:00 UTC

Einstein@home has found two previously unknown rapidly rotating neutron stars in data from the Fermi gamma-ray space telescope. While all other such millisecond pulsars have also been observed with radio telescopes, one of the two discoveries is the first millisecond pulsar detectable solely through its pulsed gamma-ray emission. The findings raise hopes of detecting other new millisecond pulsars, e.g., from a predicted large population of such objects towards the center of our Galaxy.

Read more in this joint press release by the Max Planck Institute for Gravitational Physics in Hannover and the Max Planck Institute for Radio Astronomy in Bonn. The publication appeared in Science Advances.

We would like to express our gratitude to the tens of thousands of Einstein@Home volunteers who have donated their CPU time to the project. Without them the survey could not have been performed and these discoveries could not have been made. The two discoveries reported now and the volunteers whose computers made them are:

• PSR J1035−6720: “WSyS”; Kurt Kovacs, of Seattle Washington, USA; and the ATLAS Cluster, AEI, Hannover, Germany.
• PSR J1744−7619: Darrell Hoberer, of Gainesville, TX, USA; the ATLAS Cluster, AEI, Hannover, Germany; Igor Yakushin of Chicago, IL, USA and the LIGO Laboratory, USA; and Keith Pickstone of Oldham, UK.
  

Benjamin on behalf of the Einstein@Home team

woclass

Certificate update - please update old BOINC clients
April 13, 2018
Due to Google removing trust for Symantec certificates, we need to update our SSL certificate. This will happen on Monday (Apr 16). The new certificate will ensure compatibility with new webbrowsers, but BOINC clients older than v7.4 may no longer be able to connect. If at all possible, please update your BOINC client. If you are deliberately using an older BOINC client, please ensure that the "ca-bundle.crt" file is updated (instructions will be issued).
Behind the scenes we are trying to get a certificate that works with older clients as well as new browsers, but currently that doesn't seem to work out.

Update: Changed date to Monday April 16th 2018. Google will update Chrome on Tuesday April 17th.

证书更新-请更新旧的BOINC客户端

2018-04-03

由于谷歌取消了对赛门铁克证书的信任，我们需要在周一(4月16日)更新SSL证书。

新的证书将确保与新的浏览器的兼容性，但是超过v7.4的BOINC客户端可能不再能够连接。

如果可能的话，请更新您的BOINC客户端。如果您有意使用较老的BOINC客户端，请确保  “ca-bundle.crt" 文件被更新(更新指令将被发出)。

我们尝试获得一个与旧客户端和新浏览器一起工作的证书，但目前看来这还不可行。

更新: 日期改为2018年4月16日(星期一)。谷歌将在周二4月17日更新Chrome。

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GDPR: restricting access to project statistics downloads
June 13, 2018

Hi everyone,
we'd like to announce that we're going to disable anonymous access to our project statistics downloads, becoming effective tomorrow, June 14th at 15:00 CEST. The reasoning behind this move is the new EU General Data Protection Regulation (GDPR) and its obligation concerning the publication of personal information of our users. We've discussed this matter with our community beforehand and found a way that seems to be acceptable for most.
Fear not, the following services and projects already registered individual access accounts with us and will therefore be able to gather our statistics data as usual:

• BOINCstats
• BOINC Combined Statistics
• Free-DC
• GridRepublic
• Gridcoin
  

We're also planning to add a new feature that will allow individual users to fetch their statistics data automatically and in machine readable form (presumably XML).
We're going to announce that and further related changes as soon as they're ready.

Cheers,
Oliver


GDPR: 限制对项目统计信息下载的访问
2018年6月13日

大家好！

我们想宣布，我们将禁止匿名访问我们的项目统计数据下载，从6月14日下午3点开始生效。
这一举措背后的原因是新的欧盟通用数据保护条例(GDPR)及其对我们用户个人信息发布的义务。我们已经和我们的社区讨论过这个问题，并且找到了一个大多数人都能接受的方法。

不必担心，以下服务及项目已向我们登记了个人用户的信息访问权，因此将能一如既往地收集我们的统计数据:

• BOINCstats
• BOINC Combined Statistics
• Free-DC
• GridRepublic
• Gridcoin
  

我们还计划添加一个新特性，允许单个用户自动地以机器可读的形式(假定是XML)获取统计数据。我们将在它们准备好后尽快告诉大家。

欢呼,
奥利弗

昂宿星团人

【项目成果】NEW E@H RESULTS PAPER AVAILABLE ON ARXIV
不知为什么这篇新闻没有在BAM上推送，只在BOINC客户端上收到了。
新闻地址：https://einsteinathome.org/zh-cn ... per-available-arxiv

原文：
A new paper describing the results of the O1MD1 Einstein@home search is now available on the arXiv preprint server at https://arxiv.org/abs/1903.09119 . While no astrophysical signals were found, "Results from an Einstein@Home search for continuous gravitational waves from Cassiopeia A, Vela Jr. and G347.3" describes the search and sets upper limits on the amplitude of continuous gravitational waves from the three supernova remnants at an unprecedented level. of sensitivity. The paper will now be submitted to a journal for peer review and publication.      

The three targets were chosen based on the estimated age of and distance to supernova remnants, based on an optimisation procedure that we developed in the past years. While we can see those objects in X-rays, no associated pulsations in radio waves or any other part of the electromagnetic spectrum have been detected so far. This means that the spin frequency of these objects is unknown, and hence we have to search over a very broad range of frequencies and possible frequency evolutions. It is only with the help of the massive computing power provided by the volunteers of Einstein@Home that we were able to achieve these results.   

As our methods, computing power and the sensitivity of the detectors improve, we continue the hunt for continuous gravitational waves and we invite the E@H volunteers to continue to support us in this exciting science quest.

On behalf of M. Alessandra Papa for the Einstein@Home team