Os astrônomos estão animados depois de observar a nova mais rápida já registrada. O evento incomum chamou a atenção dos cientistas para uma estrela ainda mais incomum. Amedida que a estudam, eles podem encontrar respostas não apenas...
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)
Esta ilustração mostra um sistema polar intermediário, um tipo de sistema de duas estrelas ao qual a equipe de pesquisa acredita que o V1674 Hercules pertence. Um fluxo de gás da grande estrela companheira impacta um disco de acreção antes de fluir ao longo das linhas do campo magnético para a anãbranca. Crédito: Mark Garlick
Os astrônomos estãoanimados depois de observar a nova mais rápida já registrada. O evento incomum chamou a atenção dos cientistas para uma estrela ainda mais incomum. Amedida que a estudam, eles podem encontrar respostas não apenas para as muitas caracteristicas desconcertantes da nova, mas também para questões maiores sobre a química do nosso sistema solar, a morte das estrelas e a evolução do universo.
A equipe de pesquisa, liderada pelo professor Sumner Starrfield da Universidade Estadual do Arizona, pelo professor Charles Woodward da Universidade de Minnesota e pelo cientista de pesquisa Mark Wagner da Universidade Estadual de Ohio, foi coautor de um relatório publicado hoje no Research Notes of the American Astronomical Society .
Uma nova é uma explosão repentina de luz brilhante de um sistema de duas estrelas. Cada nova é criada por uma anã branca no núcleo remanescente muito denso de uma estrela companheira próxima. Com o tempo, a anã branca extrai matéria de sua companheira, que cai sobre a anã branca. A anã branca aquece esse material, causando uma reação descontrolada que libera uma explosão de energia. A explosão dispara a matéria em alta velocidade, que observamos como luz visível .
A nova brilhante geralmente desaparece em algumas semanas ou mais. Em 12 de junho de 2021, a nova V1674 Hercules explodiu tão brilhante que era visível a olho nu - mas em pouco mais de um dia, estava fraca mais uma vez. Era como se alguém acendesse e apagasse uma lanterna.
Eventos de Nova neste nível de velocidade são raros, tornando esta nova um objeto de estudo precioso.
"Foi apenas cerca de um dia, e a nova mais rápida anterior foi uma que estudamos em 1991, V838 Herculis, que declinou em cerca de dois ou três dias", diz Starrfield, astrofísico da Escola de Exploração da Terra e do Espaço da ASU.
Enquanto o mundo da astronomia assistia ao V1674 Hercules, outros pesquisadores descobriram que sua velocidade não era sua única característica incomum. A luz e a energia que ele emite também estão pulsando como o som de um sino reverberando.
A cada 501 segundos, há uma oscilação que os observadores podem ver tanto nas ondas de luz visíveis quanto nos raios X. Um ano após sua explosão, a nova ainda mostra essa oscilação, e parece que estão acontecendo há ainda mais tempo. Starrfield e seus colegas continuaram a estudar essa peculiaridade.
"O mais incomum é que essa oscilação foi vista antes da explosão, mas também ficou evidente quando a nova era cerca de 10 magnitudes mais brilhante", diz Wagner, que também éo chefe de ciência do Observatório do Grande Telescópio Binocular usado para observar a nova. Um mistério com o qual as pessoas estão tentando lutar éo que estão impulsionando essa periodicidade que você veria nessa faixa de brilho no sistema.
A equipe também notou algo estranho enquanto monitorava a matéria ejetada pela explosão da nova osalgum tipo de vento, que pode depender das posições da anã branca e sua estrela companheira, estão moldando o fluxo de material no espaço ao redor do sistema.
Embora a nova mais rápida seja (literalmente) chamativa, a razão pela qual vale a pena um estudo mais aprofundado é que as novas podem nos fornecer informações importantes sobre nosso sistema solar e até é sobre o universo como um todo.
Uma anã branca coleta e altera a matéria, então tempera o espaço circundante com novo material durante uma explosão de nova. Uma parte importante do ciclo da matéria no Espaço. Os materiais ejetados pelas novas eventualmente formação novos sistemas estelares. Esses eventos também ajudaram a formar nosso sistema solar, garantindo que a Terra seja mais do que um pedaço de carbono.
"Estamos sempre tentando descobrir como o sistema solar se formou, de onde vieram os elementos químicos do sistema solar", diz Starrfield. "Uma das coisas que vamos aprender com essa nova anã, por exemplo, quanto lítio foi produzido por essa explosão. Temos quase certeza agora que uma fração significativa do lítio que temos na Terra foi produzida por esses tipos de explosões"
a€s vezes, uma estrela anã branca não perde toda a sua matéria coletada durante uma explosão de nova, então a cada ciclo ela ganha massa. Isso acabaria por torná-lo instável, e a anã branca poderia gerar uma supernova do tipo 1a, que é um dos eventos mais brilhantes do universo. Cada supernova tipo 1a atinge o mesmo nível de brilho, por isso são conhecidas como velas padrão.
"As velas padrão são tão brilhantes que podemos vê-las a grandes distâncias em todo o universo. Observando como o brilho da luz muda, podemos fazer perguntas sobre como o universo estão acelerando ou sobre a estrutura tridimensional geral do universo. ", diz Woodward. "Esta é uma das razões interessantes que estudamos alguns desses sistemas."
Além disso, as novas podem nos contar mais sobre como as estrelas em sistemas binários evoluem para a morte, um processo que não é bem compreendido. Eles também atuam como laboratórios vivos onde os cientistas podem ver a física nuclear em ação e testar conceitos teóricos.
A nova pegou o mundo da astronomia de surpresa. Não estava no radar dos cientistas que um astrônomo amador do Japão, Seidji Ueda, descobriu e relatou.
Cientistas cidadãos desempenham um papel cada vez mais importante no campo da astronomia, assim como a tecnologia moderna. Mesmo que agora esteja muito fraco para outros tipos de telescópios verem, a equipe ainda é capaz de monitorar a nova graças ampla abertura do Large Binocular Telescope e outros equipamentos de seu observatório, incluindo seu par de espectrografos duplos multiobjetos e o excepcional PEPSI espectrografo de alta resolução.
Eles planejam investigar a causa da explosão e os processos que levaram a ela, o motivo de seu declínio recorde, as forças por trás do vento observado e a causa de seu brilho pulsante.