A Wolf Rayet Star Bubble
What's a Wolf-Rayet star, and how did it create that spherical bubble and sweeping arc? A Wolf-Rayet star is a star that originated with a mass over 40 times that of our Sun. An extremely hot, luminous star, it has since expelled shells of material through its strong stellar wind which could account for the bubble shaped nebula that surrounds it. But astronomers are unsure how the central Wolf-Rayet created both the bubble and the arc seen above, and even whether it acted alone in doing so. Together, this bubble and the arc are known as NGC 2359.
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Section I: General Terms
- Reporting Copyright Violations
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- Third Party Software
- Disclaimer of Warranty and Limitation of Liability
- Amendment of the Terms
- Submitting Content
- Copyright in Your Content
- Monitoring Content
- Storage Policy
- Suspension and Termination of Access and Membership
- Payment Policy
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If you have any comments or questions about the Service please contact us by email.
If you have any comments or questions about the Service please contact us by email.
Section II: Additional Terms
To register as a member of the Service or purchase products, you must be 13 years or lawfully permitted to enter into and form contracts under applicable law. In no event may minors submit Content to the Service. You agree that the information that you provide to us upon registration, at the time of purchase, and at all other times will be true, accurate, current and complete. You also agree that you will ensure that this information is kept accurate and up to date at all times. This is especially important with respect to your email address, since that is the primary way in which we will communicate with you about your account and your orders.
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Arthola has no ability to control the Content you may upload, post or otherwise transmit using the Service and does not have any obligation to monitor such Content for any purpose. You acknowledge that you are solely responsible for all Content and material you upload, post or otherwise transmit using the Service.
At this time, Arthola provides free online storage of your Content to registered members of the Service. However, you acknowledge and agree that Arthola may, at its option, establish limits concerning your use of the Service, including without limitation the maximum number of days that your Content will be retained by the Service, the maximum size of any Content files that may be stored on the Service, the maximum disk space that will be allotted to you for the storage of Content on Arthola's servers. Furthermore, you acknowledge that Arthola reserves the right to terminate or suspend accounts that are inactive, in Arthola's sole discretion, for an extended period of time (thus deleting or suspending access to your Content). Without limiting the generality of Section 9, Arthola shall have no responsibility or liability for the deletion or failure to store any Content maintained on the Service and you are solely responsible for creating back-ups of your Content. You further acknowledge that Arthola reserves the right to modify its storage policies from time to time, with or without notice to you.
You are responsible for all of your Content you upload, download, and otherwise copy, distribute and display using the Service. You must have the legal right to copy, distribute and display all parts of any content that you upload, download and otherwise copy, distribute and display. Content provided to you by others, or made available through websites, magazines, books and other sources, are protected by copyright and should not be uploaded, downloaded, or otherwise copied, distributed or displayed without the consent of the copyright owner or as otherwise permitted by law.
You agree not to use the Service:
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You agree that Arthola may at any time, and without notice, suspend or terminate any part of the Service, or refuse to fulfill any order, or any part of any order or terminate your membership and delete any Content stored on the Arthola Site, in Arthola's sole discretion, if you fail to comply with the Terms or applicable law.
Arthola MAY provide payments to members based on "like$" your content generates. "Like$" do not have monetary value until actual payment is remitted. Arthola provides payments strictly at its own discretion based on internal criteria that incorporate the like-ability of your content as well as a number of other tools that could be changed at any time. Arthola may refuse to remit payment to you and terminate your account at its own discretion, and especially if suspicion of fraudulent activities have been established, incuding but not limited to multiple account usage, crosslinked "like$", as well as any of our terms of service have been violated. If Arthola selects to remit a payment to you via the financial providers that we work with, upon receipt you are solely responsible to report the payment to your tax authority. Failure to do so will be considered a violation of our terms of service and your account could be terminated.
Members cannot claim monetary compensation from Arthola. Arthola provides payments at its own discretion.