Sentences with phrase «emission lines of»

Instead their spectra are dominated by broad emission lines of highly ionized helium, nitrogen, carbon and sometimes oxygen.
He and his colleagues focused on the K - alpha emission line of iron, visible in the spectra of many active galactic nuclei (AGN)-- the brilliant centers of these galaxies.
Now if the red shift really is cosmological and depends on distance, one should observe that all these absorption lines have lesser red shift than the emission line of the quasar behind all these gas clouds.
We also notice a short lived emission line of Fe II at 2.0888 micron which was present between April 9, 2008 to May 9, 2008.
«We frequently see the Lyman - alpha emission line of hydrogen in nearby stars,» says Adi Zitrin, the discovery paper's lead author.

Not exact matches

The recap: the tech - centric automaker is expanding beyond electric vehicles and launching a line of battery products that will allow homeowners, businesses and utilities to store energy, manage backup power — and ultimately, enable zero - emission power generation.
While Peabody was only down about 10 % at the end of May 2014, the stock got crushed as the government proposed to reduce carbon emissions (stemming from fossil fuels like coal), which would burn up even more of Peabody's bottom line.
Honda established a division late last year to develop electric vehicles (EVs) as part of its long - held goal for lower - emission gasoline hybrids, plug - in hybrids, EVs and hydrogen fuel cell vehicles (FCVs) to account for two - thirds of its line - up by 2030, from about 5 percent now.
British - based research group InfluenceMap said an emissions cut of 70 percent would have been much closer to what is needed if shipping is to be in line with the goals of the Paris agreement.
The question now is whether Germany's auto industry — which is behind on the electric trend and has been upended by Volkswagen's emissions scandal — can build an e-vehicle that the nation's drivers actually want to buy, or whether the incentive will end up lining the pockets of foreign companies like Tesla and the Renault - Nissan Alliance.
Scott Segal, the head of the Electric Reliability Coordinating Council, will argue the CPP is expensive and illegal because it requires some utilities to reduce emissions «beyond the fence line» or far away from the power plants themselves.
The sunken «living room» is lined with tables fashioned from reclaimed wood from a farm in Arkansas, as well as a 12 - person communal table built from the tractor tread of a decommissioned CAT Excavator, in honor of the State of California's effort to reduce high emissions from old equipment.
This corporate trust deficit is not singularly a U.S. phenomenon, as the Volkswagen emission - rigging scandal confirmed the cynical view that in the pursuit of growth there is no triple bottom line.
But as the consortium of Asian energy companies that submitted the Canadian project for regulatory approval three years ago weighs it's options in a global energy market now flooded with cheap oil and gas, and further considers the 190 conditions attached to Ottawa's approval, including a cap on annual green house gas emissions, it may be some time before this project crosses the finish line.
We believe the BC Liberal policies on GHG emissions are in line with the stated positions of the GVBOT, especially their recommitment to revenue neutrality.
We are also currently working on the development of an organic product line while getting a company carbon assessment to reduce our emissions and make tomorrow a greener day.
The Ranch offers secluded cabins with EPA approved low - emission fireplaces and kitchen facilities, two guest lodges, including the newly opened High Lonesome Lodge, two restaurants featuring organic / sustainably focused cuisine, 35 miles of trails for hiking and mountain biking (summer) and 130 + km Nordic trail system for cross country skiing and snowshoeing (winter), a year round professional horsemanship program and stables including Summer Wrangler Camps, trail riding, skill training and feed rides as well as hiking, mountain biking, fly - fishing, zip - lining, stand up paddle boarding, adventure / skill training courses, and a nature - based, 18,000 sq. ft. restorative spa featuring massage, facials, body wraps, soaks and more.
Little Dreamer is a top of the line mattress with the GreenGuard Gold Certification, giving off little to no emissions.
On Board Diagnostics (OBD)- will be compulsory in two stages OBD 1 and 2 Myth busting reality: Not an onboard tracking device — only shows component failure or component out of tolerance Will not stop bike working Emissions - Bring pollutant limits for bikes in line with cars in three stages over the next decade.
Michael Brown CIOB Deputy Chief Executive said, «With 50 % of CO2 emissions being apportioned directly to the buildings we live and work in, the built environment is in the front line in the battle to cut carbon dioxide emissions.
This target is consistent with a straight line emission reduction pathway from 2020 to deep, economy - wide emission reductions of 80 % or more by 2050.
Mr Miliband took an uncertain line on the capacity of the market to reduce emissions.
Cuomo has justified the bailout of Exelon's plants and the surcharge by claiming failure of the plants could jeopardize jobs and the plants provide zero carbon emissions in line with his Clean Energy Standard.
More accurate distances between the most common type of «planetary nebulae» and the Earth can be estimated simply with three sets of data: firstly, the size of the object on the sky taken from the latest high resolution surveys; secondly, an accurate measurement of how bright the object is in the red hydrogen - alpha emission line; and thirdly, an estimate of the dimming toward the nebula caused by so called interstellar - reddening.
«To do this,» explains Antonio Cabrera Lavers, head of astronomy at the GTC and one of the authors of the paper, «we have used for the first time the blue tunable filter of OSIRIS to take a deep image centred on the emission from the recombination lines of one of the oxygen ions in the planetary nebula 6778.»
In blue, the emission associated with weak lines of ion O + + recombination, taken with the OSIRIS tunable filter blue instrument in the GTC.
To try to corroborate this theory, an image of the emission of a planetary nebula in the recombination lines of oxygen has been obtained with the GTC.
In green, emission of the same ion in the excited lines by collisions, taken with the narrow filter [O III] of the Nordic Optical Telescope (NOT).
In three separate indoor UV chambers, Benca exposed the dwarf pines to 7.5, 10 and 13 times Berkeley's normal UV - B intensity, in line with estimates of the impact Siberian Trap eruptions would have had on the ozone layer if their emissions occurred over various lengths of time, ranging from 400,000 years to less than 200,000 years.
We have found that the spatial distribution of this emission does not coincide with the spatial distribution of the bright collision lines.
Europe and the Pacific islands originally proposed a 70 to 100 percent cut in shipping emissions by 2050, a target aimed at bringing the sector's burgeoning emissions in line with the Paris Agreement's goal of containing warming to well below 2 degrees Celsius.
The representative of city also drew a positive conclusion: «The implementation of the low emission zone in Leipzig was in line with our legal responsibility and a consistent step to achieve a significant improvement in terms of health for the citizens and visitors of the city,» stated Heiko Rosenthal, mayor of environment, order, and sports of the city of Leipzig.
Another aspect of the plan that is likely to see significant airing in future hearings is the rule's «outside the fence line» approach, which allows states to look beyond power plant modifications to demand - side efficiency and the adoption of renewable energy when controlling greenhouse gas emissions.
In the interim, many airlines are offering ways to offset the greenhouse gas emissions associated with air travel, such as U.S. - based Delta Air Line's program with The Conservation Fund to plant trees in return for $ 5.50 that passengers are given the option of adding to the price of a domestic round - trip ticket or $ 11 for international round - trip flights.
Also, the radio observation results of molecular line emission of methanol revealed in vivid detail an hourglass structure created by gas outflows spreading outward while thrusting the ambient gas cloud away.
An emission line like that in the hands of an astronomer is like a radar gun in the hands of a cop: It reveals how fast the X-ray-emitting iron atoms are traveling.
To study the structure and kinematics of gas around IRAS 16547 - 4247, the research group observed molecular line emission of dust, CO, and methanol (CH3OH).
In the department of silver linings in very gloomy clouds come news that carbon dioxide emissions from U.S. power plants dropped 3 % last year due to the recession.
«The bottom line of the new paper is that the very large gap in reported HFC emissions is from developing countries,» said Durwood Zaelke, president of the Institute for Governance and Sustainable Development (IGSD), who was unaffiliated with the study.
Left - bottom: Variation of quantum dot emission line frequencies as a function of time due to vibrations of the photonic crystal membrane.
In place of accurate emissions data, Hsu said that China has more control over businesses than democratic governments do, so it can more easily bring them in line and maintain environmental integrity if, for example, allowances are too plentiful and their price crashes, as happened in the E.U.'s system.
If all those pig feces were collected in lined ponds to let anaerobic bacteria thrive, they could become a renewable source of 1600 tons of biogas, which can be used to generate heat and electricity on site while simultaneously reducing Israel's greenhouse - gas emissions.
Three images, left to right, of the same thundercloud depict a less - than -10-milliseconds-long sequence of events: (left) formation within the cloud of a small channel, or «leader,» of electrical conductivity (yellow line) with weak emission of radio signals (ripples), to (middle) a burst of both dark lightning (pink) and radio waves (larger ripples), to (right) a discharge of bright lightning and more radio waves.
Besides the superior resolution of ALMA, the selection of molecular emission lines to observe was key to revealing the structure.
An «emission line» like that in the hands of an astronomer is likea radar gun in the hands of a cop: It reveals how fast theX - ray - emitting iron atoms are traveling.
U.S. Supreme Court justices offered President Barack Obama's administration some encouragement on Tuesday as they weighed the lawfulness of a federal regulation limiting air pollution that crosses state lines, mostly emissions from coal - fired power plants.
A new study presents the first measurements of the changing strengths of oxygen emission lines from the present day and back to 12.5 billion years ago.
Astronomers have found dozens of quasars with similar double lines of emission, but the signatures are usually attributed either to a single black hole or to two galaxies passing close together.
These filters are narrow enough that the light from an emission line would dominate the detector of the telescope.
The study presents the first measurements of the changing strengths of oxygen emission lines from the present day and back to 12.5 billion years ago.
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