Title
LINEAR PERTURBATIONS OF A SCHWARZSCHILD BLACK HOLE: BLACK HOLE PERTURBATIONS,Used
Delivery time: 8-12 business days (International)
The remainder of the last century has seen compact ojects been the center study of modern relativitic astrophysics expecially black holes and nuetron stars. Convinsing major research results have been obtained thus far promting the development of various fields in astronomy like gravitational wave astronomy. In the distant future gravitational waves detectors will detect gravitational wave signals from collapsing sours and compact binaries. In this regard, linear black hole pertuebations theory is a theoretical vehicles to study the dynamics and the nature of this objects. Also various computational techniques have been employed to solve the associated Field equations which then resulted in the birth of numerical relativity which aims to do the simulations and thus reveiling information about these radiating sources. These information is contained in what are called quasinormal modes of perturbed (gravitationally radiating) black holes or neutron stars. These normal modes are characterized by the ring down and the power tail law and are in general important in relativistic astrophysics and computational relativity.
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Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
Shipping & Returns
Shipping
We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
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We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
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Secure Payment
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
We accept payments with :
Visa, MasterCard, American Express, Paypal, Shopify Payments, Shop Pay and more.